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Cirsium fontinale var. obispoense
J.T. Howell
Family:
Asteraceae
Chorro Creek bog thistle
Images
not available
FNA
Resources
David J. Keil in Flora of North America (vol. 19, 20 and 21)
Basal leaves:
longer spines 5-9 mm; distal faces more densely glandular than tomentose.
Cauline leaves:
longer spines 4-7 mm.
Distalmost stem bracts
tightly subtending heads or separated from them.
Phyllaries
70-120, 28-38 of them reflexed; apical spines 2-3 mm; marginal spines usually absent.
Cypselae
3.8-4 mm.
2
n
= 34.
Flowering winter-summer (Jan-Sep). Serpentine seeps, coastal live oak woodlands, grasslands, riparian areas; of conservation concern; 40-300 m; Calif.
Variety
obispoense
is known only from the southern Santa Lucia and San Luis ranges of San Luis Obispo County.
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