Chorizanthe procumbens Nutt.

Prostrate spineflower (en)

Species

Angiosperms > Caryophyllales > Polygonaceae > Chorizanthe

Characteristics

Plants prostrate to decumbent, 0.2-0.8 × 0.5-4(-5) dm, thinly pubescent. Leaves basal; petiole 0.5-2(-3) cm; blade oblanceolate, (0.5-)1-3(-4) × 0.1-0.7(-1.2) cm, thinly pubescent. Inflorescences with involucres in small, open clusters 0.3-1 cm diam., greenish yellow to green or reddish green; bracts 2, sessile, leaflike and similar to proximal leaf blades only reduced, linear-oblanceolate to elliptic, 0.3-1(-1.5) cm × 1.5-5(-8) mm, rapidly reduced and scalelike at distal nodes, linear, acicular, often acerose, 0.1-0.5 cm × (0.3-)0.5-3 mm, awns straight, 0.2-1 mm. Involucres 3-10, rarely more, greenish yellow to reddish green, cylindric or narrowly to broadly campanulate, not ventricose,1.5-3 mm, faintly corrugate, without scarious or membranous margins, thinly pubescent with spreading hairs, longest hairs on ribs and at base; teeth spreading, equal, 1-2.5 mm, or divergent, thickened basally, unequal, 1-2 mm or 2.5-5 mm with hyaline margins between teeth; awns uncinate, 0.2-0.5 mm. Flowers exserted; perianth yellow or sometimes white, cylindric, (1.7-)2-3 mm, pubescent; tepals connate ca. 3 their length, essentially monomorphic, narrowly oblong to narrowly obovate, occasionally with outer lobes slightly broader and longer than inner ones, entire apically; stamens 9, exserted; filaments connate basally into 0.2-1 mm tube, (0.3-)0.5-2.5 mm, pilose-ciliate; anthers cream to pale yellow, oblong, (0.2-)0.5-0.7 mm. Achenes brown, lenticular, 1.5-2.5 mm. 2n = (38), 40, (42, 44, 46).
Life form annual
Growth form herb
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Foliage retention deciduous
Sexuality hermaphrodite
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Mature height (meter) 0.02 - 0.08
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OctNovDec
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Environment

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Usage

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Cultivation

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Distribution

Chorizanthe procumbens world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:329659-2
WFO ID wfo-0000603521
COL ID 5YD24
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Chorizanthe jonesiana Chorizanthe procumbens Chorizanthe chaetophora Chorizanthe uncinata Chorizanthe procumbens var. albiflora Chorizanthe procumbens var. mexicana Chorizanthe procumbens var. procumbens