Difference between revisions of "Cirsium horridulum var. vittatum"
Rhodora 72: 45. 1970.
Common names: Florida thistle
Basionym: Carduus vittatus Small Bull. New York Bot. Gard. 3: 439. 1905
Synonyms: Carduus smallii (Britton) H. E. Ahles Cirsium smallii Britton Cirsium vittatum (Small) Small
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|tribe=Asteraceae tribe Cardueae | |tribe=Asteraceae tribe Cardueae | ||
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Revision as of 20:19, 16 December 2019
Plants 30–90 cm. Stems glabrous to sparsely tomentose. Leaves: blades linear to oblong, 10–30 cm, spinose-dentate to shallowly pinnatifid, main spines mostly 5–10 mm, abaxial faces glabrous or nearly so. Heads 1–10. Involucres 3–4 × 3–6 cm, glabrous. Phyllaries: outer and middle bodies densely scabridulous, marginal spinules 0.1–0.5 mm. Corollas purple. 2n = 32, 33, 34, 35.
Phenology: Flowering winter–summer (Feb–Aug).
Habitat: Meadows, pastures, old fields, pinelands, usually in damp soil
Elevation: 0–100 m
Distribution
Ala., Fla., Ga., La., Miss., N.C., S.C.
Discussion
Variety vittatum grows on the coastal plain.
Selected References
None.
Lower Taxa
None.