Comments
provided by eFloras
Layia gaillardioides occurs on the North Coast and in the North Coast Ranges, San Francisco Bay area, and Inner South Coast Ranges, and in the Outer South Coast Ranges (near Cayucos). As treated here (provisionally) and previously, L. gaillardioides is not monophyletic; molecular phylogenetic data have indicated that some lineages of L. gaillardioides are more closely related to L. carnosa, L. hieracioides, and/or L. septentrionalis than to one another (B. G. Baldwin, unpubl.).
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Description
provided by eFloras
Plants 6–60 cm (self-incom-patible); not glandular, often strongly scented. Stems purple-streaked. Leaf blades oblanceolate or lanceolate to linear, 5–120 mm, margins (basal leaves) toothed to pinnatifid. Involucres subglobose to ± campanulate or hemispheric, 4–9+ × 4–12+ mm. Phyllaries 6–18, apices shorter than folded bases. Paleae in 1 series between ray and disc florets. Ray florets 6–18; laminae yellow or bicolored (proximally yellow, distally whitish or pale yellow), 3.5–18 mm. Disc florets 14–100+; corollas 3–5 mm; anthers ± dark purple. Ray cypselae glabrous. Disc pappi 0 or of 15–24 white to rufous or purplish, ± equal bristles or setiform scales 1–4 mm, each proximally plumose, not adaxially woolly. 2n = 16.
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA
Synonym
provided by eFloras
Tridax gaillardioides Hooker & Arnott, Bot. Beechey Voy., 148. 1833 (as galardioides)
- license
- cc-by-nc-sa-3.0
- copyright
- Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA