Pyrrocoma hirta Greene

Tacky goldenweed (en)

Species

Angiosperms > Asterales > Asteraceae > Pyrrocoma

Characteristics

Plants 10–60 cm. Stems 1–4, erect or ascending, reddish, sometimes sparsely leafy, sparsely to densely villous, tomentose, or woolly, usually stipitate-glandular distally. Leaves: basal petiolate, blades lanceolate to oblanceolate or elliptic, 40–200 × 8–45 mm, margins usually coarsely, sharply serrate, sometimes entire, frequently stipitate-glandular, sometimes ciliate, apices acute, faces villous to tomentose, sometimes stipitate-glandular; cauline petiolate, lanceolate, 15–75 × 3–20 mm, becoming sessile and reduced distally, bases clasping. Heads usually 3–7 in loose, racemiform arrays, rarely borne singly (short-or long-pedunculate). Involucres hemispheric to campanulate, 7–12 × 8–20 mm. Peduncles 1–4 cm. Phyllaries in 2–3 series, loose or appressed, green throughout or only distally (bases chartaceous), linear-lanceolate, unequal to subequal, apices acute, faces villous to tomentose, sometimes stipitate-glandular. Ray florets 10–34; corollas 6–15 mm. Disc florets 30–60; corollas 5–7 mm. Cypselae subcylindric, 3–4.5 mm, 3–4-angled, faces striate, sericeous-strigose; pappi whitish to tawny, 5–7 mm.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.13 - 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-10

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Pyrrocoma hirta world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:215099-2
WFO ID wfo-0000078508
COL ID 4QW59
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Haplopappus hirtus Pyrrocoma hirta Aster grayanus Hoorebekia hirta Haplopappus hirtus subsp. hirtus Pyrrocoma hirta var. hirta Haplopappus hirtus var. hirtus

Lower taxons

Pyrrocoma hirta var. sonchifolia Pyrrocoma hirta var. lanulosa