Stenotus armerioides Nutt.

Thrift mock goldenweed (en)

Species

Angiosperms > Asterales > Asteraceae > Stenotus

Characteristics

Plants cespitose, sometimes densely so, 2–29 cm; taproots stout. Stems proximally clothed with marcescent leaves, usually glabrous, sometimes sparsely scabrous, usually viscid, sometimes eglandular. Leaves basal; narrowly petiolate; blades , 1-or 3-nerved, linear to narrowly oblanceolate or spatulate, 17–90 × 1–7(–12) mm, rigid, attenuate, margins sometimes ciliate (often minutely), viscid-glandular veins conspicuously raised abaxially, apices acute, faces ± scabrous or glabrous, gland-dotted, viscid. Heads 1–2(–4). Peduncles 10–130 mm, smooth and viscid. Involucres campanulate to hemispheric, 8–21 × 6–14 mm. Phyllaries 12–26 in 3 series, 1-(or 3)-nerved (often ± keeled), strongly unequal, outer ovate to oblong, 3–8 × 1.5–4(–7.5) mm , inner oblong, 5.5–10 × 1.5–3.5 mm, proximally indurate, distally chartaceous, green portions about as long as broad, margins scarious, sometimes broadly so, entire, apices obtuse to rounded, minutely apiculate, viscid abaxially. Ray florets 5–15; laminae elliptic to oblong, 5.5–18.5 × 2–6 mm. Disc florets 21–39; corollas funnelform to vase-shaped, 4–9 mm, tubes glabrous or rarely sparsely hairy, lobes 0.7–1.3 mm, ca. 1 / 8 – 1 / 6 length of corollas; anthers 1.8–3.5 mm, style-branch appendages subulate to lanceolate, 1.2–2.3 × 0.5 mm, stigmatic lines 0.6–1.9 mm, 1 / 2 – 3 / 4 as long as style-branch appendages. Cypselae 2–6 mm, lengths 1 / 2 – 3 / 4 disc corollas, faces sericeous; pappus bristles 60–75, 3.5–7.5 mm, nearly equaling disc corollas.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.3
Root system tap-root
Rooting depth (meter) 0.4
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-8
Soil humidity 2-4
Soil texture 3-4
Soil acidity 5-8
Soil nutriment -
Hardiness (USDA) 4-9

Usage

Uses -
Edible -
Therapeutic use -
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 -

Distribution

Stenotus armerioides world distribution map, present in Canada and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:251144-1
WFO ID wfo-0000014592
COL ID 6ZMP8
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Stenotus armerioides Haplopappus armerioides Aster armerioides Haplopappus armerioides var. armerioides Stenotus armerioides var. armerioides

Lower taxons

Stenotus armerioides var. gramineus