Coreopsis pubescens |
Coreopsis gigantea |
|
---|---|---|
hairy coreopsis, hairy tickseed, star tickseed |
giant coreopsis |
|
Habit | Perennials, 20–70(–90+) cm. | Subshrubs or shrubs (± pachycaul, fleshy), (10–)30–250+ cm. |
Leaves | mostly cauline on proximal 2/3–7/8 of plant heights; petioles 2–10(–25+) mm; blades usually simple, rarely with 1–2(–3+) lateral lobes, simple blades or terminal lobes lance-elliptic to oblanceolate or lanceolate, 15–60(–80) × 2–25(–35) mm. |
lobes mostly filiform, 10–35(–75) × 0.5–1(–2) mm. |
Peduncles | (7–)12–15+ cm. |
4–12(–18+) cm. |
Ray florets | 8–13+; laminae 20–35+ mm. |
|
Ray laminae | yellow, 12–15+ mm. |
|
Disc corollas | 4.6–5.4 mm, apices yellow. |
5–6 mm. |
Phyllaries | lance-ovate to lanceolate, 5–8+ mm. |
8–14+, lance-ovate, 10–12+ mm. |
Calyculi | of lanceolate to lance-linear bractlets 3–7 mm. |
of 4–12+ ovate to linear bractlets (5–)7–12+ mm. |
Heads | (1–)8–12+ per stem. |
|
Cypselae | 2.5–3 mm, wings ± spreading, ± chartaceous, entire. |
oblong-obovate, 5–7 mm. |
Aerial | nodes proximal to first peduncle usually (5–)6–12+, distalmost 1–3 internodes 4–6(–10+) cm. |
|
2n | = 26 (+ 0–2B). |
= 24. |
Coreopsis pubescens |
Coreopsis gigantea |
|
Phenology | Flowering (Apr–)Jun–Aug(–Sep). | Flowering Jan–Jul. |
Habitat | Sandy soils, granite outcrops, open pine-oak woods, ditches and roadsides, other disturbed sites | Coastal bluffs, dunes |
Elevation | 30–1000+ m (100–3300+ ft) | 0–200 m (0–700 ft) |
Distribution |
AL; AR; CT; FL; GA; IL; KS; KY; LA; MA; MO; MS; NC; OK; SC; TN; TX; VA; WV
|
CA; Mexico (Baja California)
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Discussion | Bushy to wiry, nearly glabrous plants with leaf blades mostly simple, mostly oblanceolate, and 2–15+ mm wide and with relatively small heads, florets, and fruits from coastal Mississippi and included here in Coreopsis pubescens may merit recognition as C. debilis Sherff or C. pubescens var. debilis. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 21, p. 195. | FNA vol. 21, p. 187. |
Parent taxa | Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Coreopsis | Asteraceae > tribe Heliantheae > subtribe Coreopsidinae > Coreopsis > sect. Tuckermannia |
Sibling taxa | ||
Synonyms | C. pubescens var. debilis, C. pubescens var. robusta | Leptosyne gigantea |
Name authority | Elliott: Sketch Bot. S. Carolina 2: 441. (1823) | (Kellogg) H. M. Hall: Univ. Calif. Publ. Bot. 3: 142. (1907) |
Web links |