Crupina vulgaris

Persoon ex Cassini in F. Cuvier

in F. Cuvier, Dict. Sci. Nat. ed 2, 12: 68. 1818.

Common names: Bearded creeper common crupina
WeedyIntroducedIllustrated
Basionym: Centaurea crupina Linnaeus Sp. Pl. 2: 909. 1753
Treatment appears in FNA Volume 19. Treatment on page 178.

Plants to 8 cm. Stems leafy to branches, openly branched, ridged. Leaves: basal often absent by anthesis, blades oblong to obovate, margins entire or dentate to deeply pinnately divided, scabrous, ciliate with glochidiate-tipped bristles; cauline 1–3.5 cm, 1–2-pinnately divided into linear lobes, ciliate with glochidiate-tipped bristles. Peduncles slender, 0.5–8 cm, bractless or with 1–several scalelike to linear bracts. Involucres sometimes falling at maturity with enclosed cypselae, 8–20 mm. Sterile florets 2–4. Fertile florets usually 1; corollas ca. 14 mm, tube with branched hairs. Cypselae usually 1 per head, barrel-shaped, 3–6 × 1.5–3.5 mm, attachment scar basal; pappus bristles in 2 unequal series, widely spreading, blackish brown, 5–10 mm; pappus-scales erect, 0.5–1 mm. 2n = 28 (Greece), 30 (Yugoslavia).


Phenology: Flowering spring–summer (Jun–Aug).
Habitat: Grassy areas, roadsides, open woodlands, forests
Elevation: 200–1000 m

Distribution

V19-199-distribution-map.gif

Introduced; Calif., Idaho, Mass., Oreg., Wash., Europe, w Asia

Discussion

I have seen material only from California; occurrences in the other states listed are documented.

Crupina vulgaris is listed as a noxious weed by governmental agencies both within and outside of its documented range. It is a highly invasive species that infests pastures, rangelands, hayfields, and disturbed sites, sometimes forming dense pure stands. It is unpalatable to livestock and tends to increase as more desirable forage is consumed. Since it was first reported in west-central Idaho in 1969, it has spread rapidly in western rangelands, forming infestations in several states.

Selected References

None.

Lower Taxa

None.

"fine" is not a number.

... more about "Crupina vulgaris"
short-tailed +
scarious +
racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
David J. Keil +
Persoon ex Cassini in F. Cuvier +
puberulent +
decurrent +
Centaurea crupina +
compound +  and simple +
toothed +  and pinnately divided or 1-2-pinnately divided +
oblong;obovate +
10-nerved or 20-nerved +  and rugose +
scalelike +  and linear +
glochidiate-tipped +
1 cm10 mm <br />0.01 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
Bearded creeper +  and common crupina +
actinomorphic +
white +, cyanic +, yellow +  and ochroleucous +
14 cm140 mm <br />0.14 m <br /> (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
barrel--shaped +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.35 cm3.5 mm <br />0.0035 m <br />) +
fertile +  and bisexual +
Calif. +, Idaho +, Mass. +, Oreg. +, Wash. +, Europe +  and w Asia +
200–1000 m +
pistillate +, staminate +  and neuter +
fertile +  and sterile +
winged +  and beaked +
dispersed +
Grassy areas, roadsides, open woodlands, forests +
clustered +, or +  and radiant +
indeterminate +
each +  and sessile +
cylindric;ovoid +
0.8 cm8 mm <br />0.008 m <br /> (2 cm20 mm <br />0.02 m <br />) +
petiolate +  and sessile +
cauline +  and basal +
deltate +, usually narrowly triangular +  and more or less linear +
dentate to deeply pinnately divided +  and entire +
usually lobed +  and dissected +
puberulent +
2-carpellate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
persistent +
1 +  and 2 +
with 1-several scalelike to linear bracts +  and bractless +
0.5 cm5 mm <br />0.005 m <br /> (8 cm80 mm <br />0.08 m <br />) +
Flowering spring–summer (Jun–Aug). +
papillate +  and smooth +
distinct +  and fused +
in F. Cuvier, Dict. Sci. Nat. ed +
bearing subulate enations +, hairy +  and bristly +
flat;convex +
5 +  and 10 +
subulate +
exalbuminous +
unequal +
Weedy +, Introduced +  and Illustrated +
branched +  and leafy +
appendaged +  and truncate +
dilated +  and swollen +
enlarged +
Compositae +
Crupina vulgaris +
species +
expanded +  and slender +
20 cm200 mm <br />0.2 m <br /> (100 cm1,000 mm <br />1 m <br />) +