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Asteraceae
Parthenium

not marked as a favorite taxon Parthenium integrifolium Linnaeus var. integrifolium. Common name: Common Wild Quinine. Phenology: Late May-Aug. Habitat: Woodlands, roadsides, various dryish habitats, mainly open or sparsely wooded. Distribution: VA west to MN, south to SC, GA, ne. MS, and nw. AR.

Glossary (beta!)

Section: Partheniastrum.

Origin/Endemic status: Native

Taxonomy Comments: Var. henryanum Mears appears to be merely a form of var. integrifolium.

Synonymy ⓘ: = Mo2, NE, NY, Va; < Parthenium integrifolium L. — Ar, C, F, FNA21, G, GrPl, Il, K4, Mi, Oh3, Pa, S, SE1, W, WV, Rollins (1950); > Parthenium integrifolium L. var. henryanum Mears — Mears (1975); < Parthenium integrifolium L. var. integrifolium — RAB, Tn; > Parthenium integrifolium L. var. integrifolium — Mears (1975). Basionym: Parthenium integrifolium L. 1753

Links to other floras: < Parthenium integrifolium - FNA21

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Heliophily ⓘ: 8

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image #1 of Parthenium integrifolium var. integrifolium© Bruce A. Sorrie | Original Image ⭷
image #2 of Parthenium integrifolium var. integrifolium© Gary P. Fleming | Original Image ⭷
image #3 of Parthenium integrifolium var. integrifolium© Gary P. Fleming | Original Image ⭷
image #4 of Parthenium integrifolium var. integrifolium© Alan Weakley source
image #5 of Parthenium integrifolium var. integrifolium© Scott Ward | Original Image ⭷
image #6 of Parthenium integrifolium var. integrifolium© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
image #8 of Parthenium integrifolium var. integrifolium© Scott Ward | Original Image ⭷
image #9 of Parthenium integrifolium var. integrifolium© Alan Weakley source
image #10 of Parthenium integrifolium var. integrifolium© Scott Ward | Original Image ⭷
image #11 of Parthenium integrifolium var. integrifolium© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
image #12 of Parthenium integrifolium var. integrifolium© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
image #15 of Parthenium integrifolium var. integrifolium© Alan Weakley source
image #17 of Parthenium integrifolium var. integrifolium© Alan Weakley source

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Horticultural Information

NCBG trait

Intro: Erect perennial of dryish, open and sparsely wooded habitats, such as open forests and woodlands, barrens and clearings.

Stems: Stems 1-several from a crown, simple or branched above, smooth or hairy.

Leaves: Leaves alternate, petiolate, lance-elliptic, to 10 in. long (reduced and becoming sessile upward), toothed and sometimes slightly lobed basally, with a rough-hairy surface.

Inforescence:

Flowers: Compound flowers (heads) in flat-topped, branched, terminal clusters: heads about 1/3 in. wide, consisting of 5 or 6 very short-petaled, white ray florets encircling a central disk of many tiny, white to cream, tubular florets.

Fruits:

Comments: Two varieties are recognized, with the typical variety having wider leaves (to about 3 in.) that are never lobed, and var. mabryanum having narrower leaves (to about 1 1/2 in.) that are often undulately lobed and blooming later into the fall.

Height: 1-3 ft.

plant sale text:

bloom table text:

description: Erect perennial of dryish, open and sparsely wooded habitats, such as open forests and woodlands, barrens and clearings.

stems: Stems 1-several from a crown, simple or branched above, smooth or hairy.

leaves: Leaves alternate, petiolate, lance-elliptic, to 10 in. long (reduced and becoming sessile upward), toothed and sometimes slightly lobed basally, with a rough-hairy surface.

inflorescence:

flowers: Compound flowers (heads) in flat-topped, branched, terminal clusters: heads about 1/3 in. wide, consisting of 5 or 6 very short-petaled, white ray florets encircling a central disk of many tiny, white to cream, tubular florets.

fruits:

comments: Two varieties are recognized, with the typical variety having wider leaves (to about 3 in.) that are never lobed, and var. mabryanum having narrower leaves (to about 1 1/2 in.) that are often undulately lobed and blooming later into the fall.

cultural notes:

germination code:

native range: eastern United States



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