Walter S. Judd

Rhododendron groenlandicum (formerly Ledum groenlandicum or Ledum latifolium), known by the common names bog Labrador tea, muskeg tea, swamp tea, in northern Canada, Hudson's Bay tea, and in Greenlandic, Qajaasaq (IPA: [qajaːsɑq], resembling a Kayak), is a species of flowering shrub in the family Ericaceae. Found in northern parts of North America and Greenland, R. groenlandicum grows primarily in bogs and other wetlands, which tend to be also in cold, acidic, and nutrient-poor environments. It has traditionally been used to make medicinal herbal teas among the Dene, Athabaskan, and Inuit,

Agarista populifolia is a plant species in the family Ericaceae with the common name of Florida hobblebush. It forms dense thickets which are difficult to penetrate, thus the common name. Stems often arching. It is found in the southeastern United States inhabiting moist to wet woodlands. It is an evergreen shrub with small white flowers on the underside of its arching branches.

Pseudoziziphus celata, commonly known as the Florida jujube or Florida ziziphus, is a small xeric-adapted shrub endemic to the Lake Wales Ridge in central Florida (restricted to Polk and Highlands counties), and is one of the rarest plants in Florida. It is listed as federally endangered in the United States and state endangered in Florida. It is the sister species of Pseudoziziphus parryi (U.S. Southwest) comprising the only two species in the genus, which are wild relatives of the cultivated jujube (Ziziphus jujuba).

Stenanthium densum is a poisonous but spectacular monocot wildflower native to pine barrens of the eastern United States. It is known variously as Osceola's plume, crowpoison, or black snakeroot. Stenanthium leimanthoides is either treated as a synonym of this species or as a separate species. It is native to the southernmost Gulf Coast, from eastern Louisiana east, down through most of Florida, and to the easternmost Atlantic Coast north to Rhode Island, seldom far from the coast. Within the family Melanthiaceae, it is placed in the tribe Melanthieae. Molecular phylogenetic studies in the

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Anticlea occidentalis is a species in the Melanthiaceae (bunchflower) family with the common names bronze-bells or western featherbells. It is found in mountains in the Pacific Northwest region of North America.

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Toxicoscordion fontanum, common name small-flower death camas, is a rare plant species known only from serpentine marshes in California. It is found primarily in the Coast Ranges from Mendocino County to San Luis Obispo County, with an additional report of an isolated population in the Sierra Nevada foothills in Kern County east of Bakersfield. Toxicoscordion fontanum is a bulb-forming perennial herb. Bulbs are egg-shaped, up to 40 mm (1.6 inches) long, not clumped together. Inflorescences are paniculate, sometimes with as many as 100 flowers. Tepals are cream-colored, up to 12 mm (0.5

Tolmiea diplomenziesii is a species of flowering plant of the genus Tolmiea. It is found mainly in Oregon and California, but it is endemic to the United States. The plant was formerly considered to be part of T. menziesii but was split off as a separate species because while T. menziesii is tetraploid, T. diplomenziesii is diploid.

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Henriettea odorata is a species of flowering plant in the family Melastomataceae. It is native northern South America, from Ecuador to Nicaragua. Its natural habitat is subtropical or tropical moist montane forests.

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Ledum was a genus in the family Ericaceae, including eight species of evergreen shrub native to cool temperate and subarctic regions of the Northern Hemisphere and commonly known as Labrador tea. It is now recognised as a subsection of section Rhododendron, subgenus Rhododendron, of the genus Rhododendron.

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