Chorizanthe watsonii Torr. & A.Gray

Fivetooth spineflower (en)

Species

Angiosperms > Caryophyllales > Polygonaceae > Chorizanthe

Characteristics

Plants spreading to erect, 0.2-1(-1.5) × 0.2-1(-1.5) dm, densely canescent-strigose. Leaves basal or nearly so; petiole (0.5-)1-2.5(-3) cm; blade oblanceolate, (0.3-)0.5-1.5(-2) × 0.2-0.4(-0.5) cm, thinly floccose to sparsely tomentose. Inflorescences with involucres in small clusters 0.5-1 cm diam., greenish to reddish; bracts 2, with laminar ones oblanceolate, (0.5-)0.8-1.5(-2) cm × (1-)2-4 mm, those at distal nodes becoming sessile, reduced and scalelike, linear-lanceolate, acicular, awns slightly curved, 0.5-1 mm. Involucres 1, green, cylindric, 5-ribbed, 3-4.5 mm, finely corrugate, pubescent; teeth 5, erect, unequal, with leaflike, narrowly lanceolate, 2-6 mm anterior tooth, others linear, 1-2 mm; awn uncinate, 0.4-0.8(-1) mm. Flowers 1, included to slightly exserted; perianth yellow, cylindric, 1.5-2.5 mm, thinly pubescent abaxially; tepals connate ca. 2/ 3 their length, mono-morphic, oblong, acute, entire apically, mostly erect; stamens 3 or 9, slightly exserted; filaments distinct, 0.8-1 mm, glabrous; anthers yellow, ovate, 0.2-0.3 mm. Achenes brown, lenticular, 2.5-3 mm.
Life form annual
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
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Mature height (meter) 0.02 - 0.1
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Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Nitrogen fixer -
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Environment

Light -
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Hardiness (USDA) 4-10

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

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Germination duration (days) -
Germination temperacture (C°) -
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Images

Chorizanthe watsonii unspecified picture

Distribution

Chorizanthe watsonii world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:57322-2
WFO ID wfo-0000603575
COL ID 5YD3K
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Chorizanthe watsonii