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Amphiachyris dracunculoides (Dc.) Nutt.

Prairie broomweed (en)

Species

Angiosperms > Asterales > Asteraceae > Amphiachyris

Characteristics

Annual, 3–8 dm, simple below, bushy-branched above; lvs numerous, linear, finely glandular-punctate, to 6 cm × 3 mm; heads numerous, campanulate or hemispheric; invol 3–6 mm; rays 6–10, 3–5 mm; achenes multinerved, villous-puberulent; 2n=8, 10. Dry soil on plains and prairies; Mo. and Kans. to Tex. and N.M.; Tenn.; Ala.; intr. in Ky. July– Oct. (Gutierrezia d.)
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Plants 30–100(–200) cm. Primary stems 0.3–1(–2) mm diam. Leaf blades narrowly to broadly lanceolate, 5–60 × 0.5–6 mm. Heads in crowded corymbiform arrays. Phyllaries 2–3 × 1–2 mm. Receptacles deeply pitted, glabrous. Cypselae 1.2–2.2 mm, 7–9-ribbed, short-setulose. 2n = 10 (rarely 8).
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
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Mature width (meter) -
Mature height (meter) 0.3 - 1.0
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Flower color
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JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Environment

Light -
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Hardiness (USDA) 4-9

Usage

Uses medicinal
Edible -
Therapeutic use Dermatological Aid (flower)
Human toxicity -
Animal toxicity -

Cultivation

Mode -
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Images

Flower

Amphiachyris dracunculoides flower picture by Jackson Campbell (cc-by-sa)
Amphiachyris dracunculoides flower picture by Kim Schwichtenberg (cc-by-sa)

Distribution

Amphiachyris dracunculoides world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:176235-1
WFO ID wfo-0000044957
COL ID CYV3
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Amphiachyris dracunculoides Gutierrezia dracunculoides Gutierrezia dracunculoides Brachyris ramosissima Xanthocephalum dracunculoides Gutierrezia lindheimeriana Brachyris dracunculoides Xanthocephalum amoenum var. intermedium Brachyris dracunculoides var. angustissima Brachyris dracunculoides var. dracunculoides
WorldFloraDB 2024