Hymenoxys hoopesii (A.Gray) Bierner

Owl's-claws (en)

Species

Angiosperms > Asterales > Asteraceae > Hymenoxys

Characteristics

Perennials, 30–100 cm (poly­carpic, often with blackish, stout rhizomes). Stems 1–4, green throughout to often purple-red-tinted proximally to purple-red-tinted throughout, branched distally, glabrous or ± hairy. Leaves: blades simple, glabrous or ± hairy, gland-dotted; mid leaves simple. Heads 1–12 per plant, in paniculiform to corymbiform arrays. Peduncles 3–16 cm, ± hairy, tomentose distally near involucres. Involucres hemispheric to broadly campanulate, 12–17 × 19–26 mm. Phyllaries in 2 series, subequal; outer 16–24, basally connate 1/4–1/3 their lengths, ovate to lanceolate, 11–16 mm, apices acute; inner 20–26, obovate to elliptic, 7.5–8.5 mm, apices acuminate to acute. Ray florets 14–26; corollas usually yellow-orange to orange, 21–45 × 4.2–8.5 mm. Disc florets 100–325+; corollas 4.2–5.4 mm. Cypselae obpyramidal to narrowly obpyramidal, 3.5–4.5 mm; pappi of 5–7 lanceolate to lanceolate-acuminate scales 2.9–4.1 mm. 2n = 30.
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A herb.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.5 - 1.0
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) 0.4
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Rich soils in coniferous forests, in meadows along stream sides and on wet slopes, 2250-3300 metres in the Southern Rockies.
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It is a temperate plant.
Light 6-9
Soil humidity 4-6
Soil texture 2-5
Soil acidity 3-8
Soil nutriment -
Hardiness (USDA) 3-8

Usage

Uses dye medicinal poison
Edible roots
Therapeutic use Analgesic (leaf), Respiratory Aid (unspecified), Antiemetic (unspecified), Ache(Stomach) (unspecified), Anodyne (unspecified), Diarrhea (unspecified), Lung (unspecified), Rheumatism (unspecified), Vermifuge (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings, divisions or seedlings.
Mode cuttings divisions seedlings
Germination duration (days) -
Germination temperacture (C°) 20
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -40
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Hymenoxys hoopesii unspecified picture

Distribution

Hymenoxys hoopesii world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:979217-1
WFO ID wfo-0000071658
COL ID 3NLN7
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Hymenoxys hoopesii Helenium hoopesii Dugaldia hoopesii Heleniastrum hoopesii