Coreopsis calliopsidea |
Coreopsis hamiltonii |
|
---|---|---|
leafstem tickseed |
Mt. Hamilton tickseed |
|
Habit | Annuals, (5–)12–30(–50) cm. | Annuals, (3–)10–20+ cm. |
Leaf | lobes linear, 3–30 × 0.5–3 mm. |
lobes oblong to linear, 1–8(–15) × 0.5–1 mm. |
Peduncles | 5–25+ cm. |
3–9(–18) cm. |
Ray florets | (5–)8+; laminae 12–20(–30) mm. |
8; laminae 3.5–8 mm. |
Disc florets | (12–)40–100+; corollas 4–6.6 mm. |
ca. 40; corollas 2.5–3.5 mm. |
Phyllaries | (5–)8, lance-ovate to lanceolate, 6–10+ mm. |
8, ± lance-ovate, 4–8 mm. |
Calyculi | of 3–5 ovate-deltate bractlets (3–)4–6 mm. |
of 3–5 oblong to linear bractlets 1–3(–5) mm. |
Disc cypselae | oblanceolate to linear, 5–6 mm; pappi 3–4(–5) mm. |
narrowly oblanceolate, 4–5 mm; pappi ca. 1 mm. |
Ray cypselae | ± oblong, 4–6 mm. |
narrowly obovate, 5–6 mm. |
Paleae | seldom basally adnate to and falling with disc cypselae. |
seldom basally adnate to and falling with disc cypselae. |
2n | = 24. |
= 24. |
Coreopsis calliopsidea |
Coreopsis hamiltonii |
|
Phenology | Flowering Feb–Jun. | Flowering Mar–May. |
Habitat | Alkaline playas, flood plains, deep sands | Talus slopes, rocky soils |
Elevation | 100–1000 m (300–3300 ft) | 600–1300 m (2000–4300 ft) |
Distribution |
CA
|
CA |
Source | FNA vol. 21, p. 188. | FNA vol. 21, p. 188. |
Parent taxa | Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Pugiopappus | Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Pugiopappus |
Sibling taxa | ||
Synonyms | Agarista calliopsidea | Leptosyne hamiltonii |
Name authority | (de Candolle) A. Gray: in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 90. (1859) | (Elmer) H. Sharsmith: Madroño 4: 214. (1938) |
Web links |