Pityopsis oligantha Small

Grassleaf goldaster (en)

Species

Angiosperms > Asterales > Asteraceae > Pityopsis

Characteristics

Perennials, 20–50 cm; rhizomes 5–15 cm. Stems usually 1, erect, green to reddish brown, simple, slender, proximal 1 / 3 silvery sericeous, distal densely stipitate-glandular (glands dark). Leaves: basal overwintering, in rosettes, sessile, blades oblanceolate, grasslike, 80–300 × 3–14 mm, silvery-sericeous; proximal cauline 2–6, blades linear to broadly oblanceolate, somewhat clasping, graminiform, 60–150 × 4–11 mm, ± clasping, apices acute, faces silvery-sericeous (hairs long, anastomosing); distal 10–50 × 2–5 mm. Heads 1–5(–10), in corymbiform arrays. Peduncles 2–14 cm, sometimes with a few long hairs, densely stipitate-glandular; bracteoles 0–4, 2–4 mm. Involucres campanulate, 9–11 mm. Phyllaries in 4–5 series, sparsely stipitate-glandular, margins fimbriate (midnerves pronounced), apices acute, apical hairs twisted-sericeous, faces densely stipitate-glandular. Ray florets 11–16; laminae 9–13 mm. Disc florets 25–40; corollas 6.5–8 mm, glabrate to sparsely short piloso-sericeous, lobes 0.5–0.8 mm, sparsely short piloso-sericeous. Cypselae fusiform, linear-pyriform, 4–5 mm, ribbed, strigose; pappi: outer of linear to linear-triangular scales 0.8–1.4 mm, inner 25–40 bristles 6–7 mm. 2n = 36.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 0.5
Root system rhizome
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) 5-10

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

Pityopsis oligantha world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:200887-2
WFO ID wfo-0000117810
COL ID 4JD7G
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Pityopsis oligantha Heterotheca oligantha Chrysopsis oligantha var. oligantha