David D. Keck

American botanist (1903-1995).

David Daniels Keck (October 24, 1903 – March 10, 1995) was an American botanist who was notable for his work on angiosperm taxonomy and genetics. Keck was born in Omaha, Nebraska. He completed undergraduate studies at Pomona College in 1925 and was awarded a Ph.D. in botany from the University of California in 1930. From 1925 to 1950 he was based at the Carnegie Institution of Washington, at Stanford University, where he worked on plant species concepts with Jens Clausen and William Hiesey. In 1949, the three of them were co-recipients of the Mary Soper Pope Memorial Award in botany. In 1950 h

Abbreviations: D.D.Keck
Occupations: scientific collector, botanist, botanical collector
Citizenships: United States
Dates: 1903-10-24T00:00:00Z – 1995-03-10T00:00:00Z
Birth place: Omaha
Direct attributions: 80 plants, 0 fungi
Authorship mentions: 134 plants, 0 fungi

80 plants attributed, 54 plants contributed to134 plants:

Penstemon filiformis (Thread-leaved Beardtongue) (D.D.Keck) D.D.Keck 1951
perennial plant species in the plantaginaceae family
Penstemon filiformis is an uncommon species of Penstemon known by the common name threadleaf penstemon. It is endemic to the Klamath Mountains of northern California, where it grows in forest and woodland, often on serpentine soils.
Penstemon tracyi (Tracy's Beardtongue) D.D.Keck 1940
perennial plant species in the plantaginaceae family
Penstemon tracyi is a rare species of penstemon known by the common names Trinity penstemon and Tracy's beardtongue. The plant is endemic to Trinity County, California, where it is known from fewer than 10 occurrences in the Trinity Alps, of the Klamath Mountains. It grows in exposed rocky outcrops and barren talus in the high mountains.
Penstemon neotericus (Plumas County Beardtongue) D.D.Keck 1932
plant species in the plantaginaceae family
Penstemon neotericus is a species of penstemon known by the common name Plumas County beardtongue. It is endemic to California, where it is known from the northern Sierra Nevada and adjacent southern peaks of the Cascade Range. It grows in forest, scrub, and other mountain habitat. It is a perennial herb growing erect to about 80 centimeters tall, becoming woody toward the base. The paired leaves are lance-shaped and nearly 9 centimeters in maximum length. The glandular inflorescence bears blue-purple or pinkish flowers up to 4 centimeters long. The flowers have white, mostly hairless mouths
Penstemon californicus (California Beardtongue) (Munz & I.M.Johnst.) D.D.Keck 1937
plant species in the plantaginaceae family
Penstemon californicus is a species of penstemon known by the common name California penstemon. It is native to the Mexican state of Baja California but is also found in a few places in the American state of California. It grows in the forest and woodland habitat of the Peninsular Ranges and nearby slopes.
Penstemon bicolor (Pinto Beardtongue) (Brandegee) Clokey & D.D.Keck 1939
perennial plant species in the plantaginaceae family
Penstemon bicolor is a species of penstemon known by the common name pinto penstemon. It is native to the desert mountains and valleys of southern Nevada, eastern California, and western Arizona, where it grows in scrub, woodland, and other local habitat. It is a perennial herb which may exceed one meter in maximum height.
Adenothamnus D.D.Keck 1935
plant genus in the asteraceae family
Adenothamnus is a genus of flowering plants in the family Asteraceae described as a genus in 1935. There is only one known species, Adenothamnus validus, endemic to the Baja California Peninsula in Mexico.
Penstemon scapoides (Pinyon Beardtongue) D.D.Keck 1932
perennial plant species in the plantaginaceae family
Penstemon scapoides is an uncommon species of penstemon known by the common name pinyon beardtongue. It is endemic to Inyo County, California, where it grows in the scrub, woodlands, and forests of the mountain ranges above the desert. It is a clumpy perennial herb forming a dense mat of oval to rounded leaves and erect flowering stems which may exceed half a meter in height. The leaves are pale green and coated densely in hairs. The inflorescence bears tubular flowers each up to 3.4 centimeters in length. The flowers are pale lavender to blue-purple and have yellowish hairs inside their
Penstemon personatus (Closed-throated Beardtongue) D.D.Keck 1936
perennial plant species in the plantaginaceae family
Penstemon personatus is an uncommon species of penstemon known by the common name closethroat beardtongue.
Penstemon grahamii (Graham's Beardtongue) D.D.Keck 1937
perennial plant species in the plantaginaceae family
Penstemon grahamii, known by the common names Uinta Basin beardtongue and Graham's beardtongue, is a species of flowering plant in the plantain family. It is native to Utah and Colorado in the United States. This perennial herb produces one or more stems reaching up to about 20 centimeters tall. They are hairy, and in the inflorescence, glandular. The leaves are thick, leathery, and dark green to grayish in color. The basal leaves narrow toward the stem, and the upper leaves clasp the stem. The tubular flowers are between 3 and 4 centimeters long and pink to lavender in color with reddish
Benitoa occidentalis (Benitoa) (H.M.Hall) D.D.Keck 1956
plant species in the asteraceae family
Benitoa is a genus of flowering plants in the family Asteraceae. Benitoa is monotypic, containing the single species Benitoa occidentalis. It is sometimes included in genus Lessingia as the synonym Lessingia occidentalis. Benitoa is endemic to California, where it is known mostly from San Benito County, the region for which it is named. Additional populations have been found in nearby parts of Fresno and Monterey Counties.
Penstemon seorsus (Short-lobed Penstemon) (A.Nelson) D.D.Keck 1940
plant species in the plantaginaceae family
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Penstemon pennellianus (Blue Mountain Beardtongue) D.D.Keck 1940
perennial plant species in the plantaginaceae family
Penstemon pennellianus, often called the Blue Mountain beardtongue or Blue Mountain penstemon, is a species of beardtongue native to Washington and Oregon.
Penstemon nanus (Dwarf Beardtongue) D.D.Keck 1940
perennial plant species in the plantaginaceae family
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Penstemon lemhiensis (Lemhi Penstemon) (D.D.Keck) D.D.Keck & Cronquist 1957
perennial plant species in the plantaginaceae family
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Penstemon globosus (Globe Penstemon) (Piper) Pennell & D.D.Keck 1940
perennial plant species in the plantaginaceae family
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Penstemon cinicola (Ash Penstemon) D.D.Keck 1940
perennial plant species in the plantaginaceae family
Penstemon cinicola is a species of penstemon known by the common name ash penstemon. It is native to northeastern California and southern Oregon, where it grows in forests and plateau habitat.
Dubautia scabra (Rough Dubautia) (DC.) D.D.Keck 1936
plant species in the asteraceae family
Dubautia scabra, or rough dubautia, is a species of Dubautia endemic to the state of Hawai'i and is found on the islands of Hawaii (island), Maui, Molokai, and Lanai. It is a member of the silversword alliance. Two subspecies have been described, with the nominate subspecies Dubautia scabra scabra being found only on Maui and Hawaii (island).
Dubautia arborea (Tree Dubautia) (A.Gray) D.D.Keck 1936
endangered plant species in the asteraceae family
Dubautia arborea, the tree dubautia or Mauna Kea dubautia, is a species of flowering plant that forms a shrub or small tree. The species is a member of the silversword alliance and the family Asteraceae. It is endemic to the island of Hawaiʻi and is endangered.
Penstemon paysoniorum (Payson's Beardtongue) D.D.Keck 1947
perennial plant species in the plantaginaceae family
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Penstemon discolor (Cataiina Beardtongue) D.D.Keck 1937
plant species in the plantaginaceae family
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Layia munzii (Munz's Tidytips) D.D.Keck 1935
plant species in the asteraceae family
Layia munzii is a rare species of flowering plant in the family Asteraceae known by the common name Munz's tidytips, or Munz's layia.
Layia discoidea (Rayless Layia) D.D.Keck 1958
plant species in the asteraceae family
Layia discoidea is a rare species of flowering plant in the family Asteraceae known by the common name rayless tidytips, or rayless layia.
Lagophylla minor (Lesser Hareleaf) (D.D.Keck) D.D.Keck 1958
plant species in the asteraceae family
Lagophylla minor is a species of flowering plant in the family Asteraceae known by the common name lesser hareleaf. It is endemic to California, where it grows in the foothills surrounding the Sacramento Valley. It is a member of the plant communities growing on serpentine soils. This is an annual herb producing a thin, forking, purplish brown stem covered in small stiff hairs. The hairy leaves are 2 to 5 centimeters long and linear in shape, those on the lower stem toothed and those on the upper smooth-edged. The inflorescence bears flower heads with five bright yellow three-lobed ray
Ivesia cryptocaulis (Charleston Peak Mousetail) (Clokey) D.D.Keck 1939
perennial plant species in the rosaceae family
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Holocarpha virgata (Pit-gland Tarweed) (A.Gray) D.D.Keck 1958
plant species in the asteraceae family
Holocarpha virgata is a species of flowering plant in the family Asteraceae known by the common names yellowflower tarweed, pitgland tarweed, and narrow tarplant.
Holocarpha obconica (San Joaquin Tarweed) (J.C.Clausen & D.D.Keck) D.D.Keck 1958
plant species in the asteraceae family
Holocarpha obconica, commonly known as the San Joaquin tarweed, is a North American plant species in the sunflower family. It is endemic to (found only in) California, primarily in the Central Valley and adjacent regions. The epithet "obconica" means "obconical," in other words, shaped like a cone, but with the widest part furthest from the base. Achenes of H. obconica are obconical. The plant is a resin-containing herb up to 120 cm (4 feet) tall. It produces numerous flower heads, each head containing 4–9 yellow ray flowers surrounding 11–21 small yellow disc flowers, the disc flowers having
Holocarpha heermannii (Heermann's Tarweed) (Greene) D.D.Keck 1958
plant species in the asteraceae family
Holocarpha heermannii is a species of flowering plant in the family Asteraceae known by the common name Heermann's tarweed. It is endemic to California.
Dubautia menziesii (Mountain Dubautia) (A.Gray) D.D.Keck 1936
plant species in the asteraceae family
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Penstemon rubicundus (Wassuk Range Beardtongue) D.D.Keck 1937
perennial plant species in the plantaginaceae family
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Penstemon concinnus (Tunnel Springs Beardtongue) D.D.Keck 1940
perennial plant species in the plantaginaceae family
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