Difference between revisions of "Castilleja ambigua var. humboldtiensis"
Phytologia 90: 67. 2008.
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|genus=Castilleja | |genus=Castilleja | ||
|species=Castilleja ambigua | |species=Castilleja ambigua | ||
Latest revision as of 19:24, 5 November 2020
Stems ± short-decumbent proximally, becoming erect to ascending, unbranched or few-branched from mid stem. Leaves narrowly oblong to linear, oblong, or lanceolate, cup-shaped, ± fleshy, apex rounded. Bracts proximally green or brownish purple, distally pink to purple on lobe apices; lobes ascending, oblong, 20–23 mm, usually arising above mid length. Calyces with all 4 clefts subequal; lateral clefts 3 mm, ca. 15% of calyx length. Corollas 21–24 mm; beak pink or purplish, 5–7 mm; abaxial lip yellow, becoming orange or red-purple after anthesis; teeth deep pinkish purple, often with whitish bases.
Phenology: Flowering Apr–Jul(–Aug).
Habitat: Upper margins of Salicornia salt marshes, saline flats.
Elevation: 0–10 m.
Discussion
Variety humboldtiensis has purplish flowers and bract apices and is limited to the upper edge of Salicornia-dominated salt marshes in Humboldt and Mendocino counties, where it replaces var. ambigua. Most populations are around Humboldt Bay. Reports of var. humboldtiensis from Tomales Bay in Marin County are based on plants of the salt marsh form of var. ambigua and have yellowish flowers. Variety humboldtiensis is threatened by coastal development.
Selected References
None.