Hymenoxys richardsonii Cockerell

Pingue rubberweed (en)

Species

Angiosperms > Asterales > Asteraceae > Hymenoxys

Characteristics

Perennials, 7–34 cm (polycarpic; usually with highly branched woody caudices). Stems 1–20(–30+), usually green throughout, rarely purple-red-tinted proximally, branched distally, glabrous or ± hairy. Leaves: blades simple or lobed (lobes 3–7), glabrous or ± hairy, gland-dotted (basal leaf bases densely long-villous-woolly); mid leaves lobed (lobes 3–5, terminal lobes 0.7–2 mm wide). Heads 5–300+ per plant, in corymbiform arrays. Peduncles 1–5 cm, ± hairy. Involucres campanulate, 7–11 × 7–14 mm. Phyllaries in 2 series, unequal; outer 8–13, obovate to ovate to lanceolate, basally connate 1/2 their lengths, 3.5–8 mm, apices acuminate to acute; inner 8–18, obovate, 3–8 mm, apices mucronate. Ray florets 7–14; corollas yellow, 7–17 × 3–6 mm. Disc florets 25–75+; corollas 3–5 mm. Cypselae narrowly obpyramidal, 2–3 mm; pappi of 4–8 obovate to lanceolate, aristate scales 1.8–3.5 mm. 2n = 30.
More
A herb.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination entomogamy
Spread -
Mature width (meter) -
Mature height (meter) 0.2
Root system -
Rooting depth (meter) -
Root diameter (meter) 0.3
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Dry, open often rocky hillsides and plains. Roadsides, open areas, edges of forests at elevations of 1500-2500 metres.
More
It is a temperate plant.
Light 4-9
Soil humidity 1-6
Soil texture 3-6
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 4-10

Usage

The plant is chewed as a chewing gum. The skin of the root is used to make a chewing gum.
Uses dye food gum material medicinal poison
Edible roots
Therapeutic use Dermatological Aid (root), Gastrointestinal Aid (root), Ceremonial Medicine (unspecified), Dermatological Aid (unspecified), Emetic (unspecified), Poison (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by seedlings.
Mode seedlings
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Hymenoxys richardsonii unspecified picture

Distribution

Hymenoxys richardsonii world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:126022-2
WFO ID wfo-0000137604
COL ID 3NLNR
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Hymenoxys biennis Hymenoxys richardsonii Actinella biennis Picradenia richardsonii Actinea richardsonii Actinea biennis Actinella richardsonii Picradenia biennis Actinella richardsonii Hymenoxys richardsonii var. richardsonii Hymenoxys richardsonii subsp. richardsonii Actinea richardsonii var. richardsonii Picradenia richardsonii subsp. richardsonii Picradenia richardsonii var. richardsonii Actinella richardsonii var. richardsonii

Lower taxons

Hymenoxys richardsonii var. floribunda