Nabalus altissimus (Linnaeus) Hooker. Common name: Tall Rattlesnake-root. Phenology: Aug-Nov. Habitat: Forests. Distribution: NL (Newfoundland) west to MI, south to GA, LA, and AR.
Origin/Endemic status: Native
Taxonomy Comments: The variation of pappus color responsible for the sometime recognition of two varieties (see synonymy) needs additional study.
Synonymy ⓘ: = NE, NY, POWO, S, Tn, Va; = Prenanthes altissima L. — Ar, FNA19, G, Mi, Oh3, Pa, RAB, Tat, W, WV, Fusiak & Schilling (1984), Johnson (1980); > Nabalus altissimus (L.) Hook. var. altissimus — Il; > Nabalus altissimus (L.) Hook. var. cinnamomea (Fernald) Mohlenbr. — Il; > Prenanthes altissima L. var. altissima — C, F, SE1; > Prenanthes altissima L. var. cinnamomea Fernald — C, F, SE1; > Prenanthes altissima L. var. hispidula Fernald
Links to other floras: = Prenanthes altissima - FNA19
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: UPL
- Eastern Mountains and Piedmont: FACU
- Great Plains: UPL
- Midwest: FACU
- Northcentral & Northeast: FACU
Heliophily ⓘ: 4
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Horticultural Information
Intro | Stems | Leaves | Inforescence | Flowers | Fruits | Comments | Height | plant sale text | bloom table text | description | stems | leaves | inflorescence | flowers | fruits | comments | cultural notes | germination code | native range |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Erect perennial of moist to dry upland forests, well-drained alluvial forests and clearings. | Stems branched above, often zigzagged above, mostly smooth (sometimes hairy at base), leaking milky sap when broken. | Leaves alternate, petiolate, triangular to lance-shaped, 1½--6 in. long, varying from a few teeth to deeply 3- to 5-lobed (lobes angular); also with milky sap. | Composite flowers (heads) drooping from short stalks of a terminal panicle; cylindric heads about 1/2 in. long, consisting of 5 spreading to recurved, pale yellow or greenish-white ray florets surrounded by 5 smooth, pale green bracts. | Fruit a tufted achene. | 1 1/2-6 ft. | Erect perennial of moist to dry upland forests, well-drained alluvial forests and clearings. | Stems branched above, often zigzagged above, mostly smooth (sometimes hairy at base), leaking milky sap when broken. | Leaves alternate, petiolate, triangular to lance-shaped, 1½--6 in. long, varying from a few teeth to deeply 3- to 5-lobed (lobes angular); also with milky sap. | Composite flowers (heads) drooping from short stalks of a terminal panicle; cylindric heads about 1/2 in. long, consisting of 5 spreading to recurved, pale yellow or greenish-white ray florets surrounded by 5 smooth, pale green bracts. | Fruit a tufted achene. |
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