Alternanthera pungens |
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creeping chaffweed, khaki joyweed, khakiweed |
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Habit | Herbs, perennial, 3–8 dm. |
Stems | prostrate, villous. |
Leaves | sessile; blade oval to obovate, usually as broad as long, 1.3–3 × 1.1–1.7 cm, apex rounded, pilose, glabrate. |
Inflorescences | axillary, sessile; heads stramineous, globose to ovoid, 0.6–1 × 0.6–0.7 cm; bracts equaling tepals, apex attenuate. |
Flowers | tepals dimorphic, stramineous, lanceolate, 5–7 mm, apex acuminate, spinose tipped, sparsely villous, hairs barbed; stamens 5; anthers 3–5, globose; pseudostaminodes triangular, shorter than filaments, margins dentate. |
Seeds | lenticular, 1.3–1.5 mm. |
Utricles | included within tepals, brown, compressed, 1.8 mm, apex truncate. |
Alternanthera pungens |
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Phenology | Flowering summer–fall. |
Habitat | Waste grounds, cleared limestone areas |
Elevation | 0-1500 m [0-4900 ft] |
Distribution |
AL; FL; LA; NY; TX; South America; West Indies [Introduced in North America]
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Discussion | Alternanthera pungens was long known as A. repens (Linnaeus) Link, a later homonym of A. repens J. F. Gmelin. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 450. |
Parent taxa | |
Sibling taxa | |
Synonyms | Achyranthes leiantha |
Name authority | Kunth: in A. von Humboldt et al., Nov. Gen. Sp. 2: 206. (1818) |
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