Theodore Mitchell Barkley

Botanist (1934-2004).

Abbreviations: T.M.Barkley
Occupations: botanist, botanical collector
Citizenships: United States
Dates: 1934-04-12T00:00:00Z – 2004-00-00T00:00:00Z
Direct attributions: 35 plants, 0 fungi
Authorship mentions: 44 plants, 0 fungi

35 plants attributed, 9 plants contributed to44 plants:

Robinsonecio T.M.Barkley & Janovec 1996
plant genus in the asteraceae family
Robinsonecio is a genus of flowering plants belonging to the family Asteraceae. It is native to Mexico and Guatemala. The genus name of Robinsonecio is in honour of Harold E. Robinson (1932–2020), an American botanist and an entomologist. It was first described and published in Sida Vol.17 on page 79 in 1996. Known species, according to Kew; Robinsonecio gerberifolius (Sch.Bip. ex Hemsl.) T.M.Barkley & Janovec Robinsonecio porphyresthes (T.M.Barkley) T.M.Barkley & Janovec
Senecio ertterae (Ertter's Ragwort) T.M.Barkley 1978
plant species in the asteraceae family
Senecio ertterae is a species of flowering plant in the aster family known by the common name Ertter's ragwort. It is endemic to Oregon, United States. This annual herb grows 20 to 50 centimeters tall, sometimes reaching 60 centimeters or more. The leaves and stems are slightly succulent. The lance-shaped or spatula-shaped leaves are borne on winged petioles. The inflorescence is a cyme-shaped array of several flower heads. The yellow ray florets are each about half a centimeter long. Flowering occurs in July through October. This species occurs in the Leslie Gulch in eastern Oregon, in
Packera subnuda (Buek's Groundsel) (DC.) Trock & T.M.Barkley 1999
plant species in the asteraceae family
Packera subnuda is a species of flowering plant in the aster family known by the common names Buek's groundsel and cleftleaf groundsel. It is native to western North America from the Northwest Territories to northern California to Wyoming, where it grows in high mountain meadows in subalpine and alpine climates. It is a perennial herb producing one upright stem or a small cluster of two or three stems from a rhizome and/or fibrous root system. The stems grow approximately 5 to 30 centimeters (2.0 to 11.8 in) tall. The basal leaves have fleshy oval blades up to 3 or 4 centimeters (1.2 or 1.6
Senecio riskindii B.L.Turner & T.M.Barkley 1993
plant species in the asteraceae family
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Senecio quaylei (Quayle's Ragwort) T.M.Barkley 2000
plant species in the asteraceae family
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Senecio pseudopicridis T.M.Barkley 1989
plant species in the asteraceae family
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Senecio martirensis T.M.Barkley 1978
plant species in the asteraceae family
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Senecio lasiocaulon T.M.Barkley 1989
plant species in the asteraceae family
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Senecio billieturneri T.M.Barkley 1989
plant species in the asteraceae family
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Senecio venturae T.M.Barkley 1990
plant species in the asteraceae family
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Senecio subcymosus (H.Rob.) B.L.Turner & T.M.Barkley 1989
plant species in the asteraceae family
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Senecio michoacanus (B.L.Rob.) B.L.Turner & T.M.Barkley 1989
plant species in the asteraceae family
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Senecio hintonii (H.Rob. & Brettell) T.M.Barkley 1989
plant species in the asteraceae family
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Senecio guerrensis T.M.Barkley
plant species in the asteraceae family
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Senecio gentryi (H.Rob. & Brettell) B.L.Turner & T.M.Barkley 1989
plant species in the asteraceae family
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Robinsonecio porphyresthes (T.M.Barkley) T.M.Barkley & Janovec 1996
plant species in the asteraceae family
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Robinsonecio gerberifolius (Sch.Bip.) T.M.Barkley & Janovec 1996
perennial plant species in the asteraceae family
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Packera zimapanica (Hemsl.) C.C.Freeman & T.M.Barkley 1995
plant species in the asteraceae family
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Packera bolanderi var. harfordii (Harford's Ragwort) (Greenm.) Trock & T.M.Barkley 1998
plant variety in the asteraceae family
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Senecio flaccidus var. monoensis (Smooth Threadleaf Ragwort) (Greene) B.L.Turner & T.M.Barkley 1990
plant variety in the asteraceae family
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Senecio flaccidus var. douglasii (Douglas' Threadleaf Ragwort) (DC.) B.L.Turner & T.M.Barkley 1990
plant variety in the asteraceae family
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Senecio porphyresthes T.M.Barkley 1989
plant species in the asteraceae family
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Senecio multidentatus var. huachucanus (Huachuca Mountain Ragwort) (A.Gray) T.M.Barkley 1989
perennial plant variety in the asteraceae family
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Senecio moranii T.M.Barkley 1978
plant species in the asteraceae family
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Senecio integerrimus var. scribneri (Scribner's Ragwort) (Rydb.) T.M.Barkley 1960
plant variety in the asteraceae family
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Senecio flaccidus var. durangensis (Greenm.) T.M.Barkley 1989
plant variety in the asteraceae family
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Senecio cronquistii (H.Rob. & Brettell) B.L.Turner & T.M.Barkley 1989
plant species in the asteraceae family
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Senecio angustiradiatus T.M.Barkley 1976
plant species in the asteraceae family
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Packera scalaris var. parrasiana (Greenm.) C.C.Freeman & T.M.Barkley 1995
plant variety in the asteraceae family
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Packera scalaris var. carmenensis (C.C.Freeman) C.C.Freeman & T.M.Barkley 1995
plant variety in the asteraceae family
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