Cirsium scariosum var. congdonii (R.J.Moore & Frankton) D.J.Keil

Variety

Angiosperms > Asterales > Asteraceae > Cirsium > Cirsium scariosum

Characteristics

Plants acaulescent or nearly so (with dense rosettes of leaves and cluster of sessile or subsessile heads). Stems absent or very short, simple, stout, fleshy, very leafy. Leaves: blades oblong to oblanceolate or elliptic, shallowly pinnately lobed or sometimes unlobed, longer spines slender, less than 1 cm, abaxial faces green and ± glabrous to white-tomentose, adaxial faces green, glabrous or villous with septate trichomes. Heads 1–many, sessile or subsessile, crowded. Involucres 2–3 cm. P hyllaries: outer and mid lanceolate to ovate, spines slender, 1–4 mm; apices of inner linear-acuminate, often twisted, entire or minutely toothed. Corollas pink to reddish purple, 22–30 mm, tubes 10–15 mm, throats 5–7.5 mm, lobes 4–7 mm; style tips 3–5 mm. Cypselae 4–4.5 mm; pappi 17–28 mm. 2n = 34 (as C. congdonii).
Life form perennial
Growth form herb
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

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

Usage

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

Cultivation

Mode -
Germination duration (days) 15 - 18
Germination temperacture (C°) 21 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Cirsium scariosum var. congdonii world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:60436296-2
WFO ID wfo-0000107165
COL ID 7LHLW
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Cirsium congdonii Cirsium scariosum var. congdonii