Gaillardia pinnatifida |
Gaillardia pulchella |
|
---|---|---|
red dome blanketflower, yellow blanket flower |
firewheel, firewheel Indian blanket, Indian blanket, indianblanketflower, rosering blanket-flower, sundance |
|
Habit | Perennials (sometimes flowering first year, sometimes rhizomatous), (5–)15–35+ cm. | Annuals (sometimes persisting), 5–35(–60+) cm. |
Leaves | basal and cauline, mostly restricted to proximal 1/3–1/2; petiolar bases 0–5+ cm; blades mostly oblanceolate to spatulate, 3–6(–12) cm × 3–18(–30) mm, margins mostly pinnatifid, distal sometimes toothed or entire (rarely all linear, entire), faces closely strigillose to shaggily villous. |
cauline; petiolar bases 0–3+ cm; blades linear, oblong, or spatulate, 1–5(–12) cm × 4–12(–35) mm, (bases of distal ± clasping) margins usually entire, sometimes toothed or lobed, faces closely strigillose or hirtellous to ± villous (hairs jointed). |
Peduncles | (4–)8–25+ cm. |
3–10(–20) cm. |
Ray florets | 0 or 5–14; corollas usually uniformly yellow, sometimes proximally and/or abaxially reddish, 10–25+ mm. |
usually 8–14, rarely 0; corollas usually reddish to purplish proximally, yellow to orange distally, rarely yellow, reddish, or purplish throughout, 13–30+ mm. |
Disc florets | (30–)60–100+; corollas usually proximally ochroleucous or yellow and distally purplish, rarely wholly yellow, tubes 0.8–1 mm, throats campanulate to plumply urceolate, 3–4.5 mm, lobes broadly deltate to deltate-ovate, 0.5–1 mm, jointed hairs 0.3+ mm. |
40–100+; corollas yellowish to purple or brown, often bicolored, tubes 0.8–1.2 mm, throats campanulate to urceolate, 3–4 mm, lobes deltate to ovate, often attenuate, 1–3+ mm, jointed hairs 0.3+ mm. |
Phyllaries | 20–30, ovate- to lanceolate-attenuate, 7–12+ mm, hispidulous to villous (hairs often jointed). |
18–28+, narrowly triangular- to linear-attenuate, 6–14+ mm, usually ciliate with jointed hairs. |
Cypselae | obpyramidal, 1–3 mm, hairs 1–2 mm, inserted at bases and on angles and faces; pappi of 8–11 lanceolate, aristate scales 3–7 mm (scarious bases 1.5–4 × 0.5–1.5 mm). |
obpyramidal, 2–2.5 mm, hairs 1.5–2 mm, inserted at bases and on angles; pappi of 7–8 deltate to lanceolate, aristate scales 4–7 mm (scarious bases 1–2.5 × 0.7–1.3 mm). |
Receptacular | setae usually 1–3 mm, rarely wanting. |
setae 1.5–3 mm. |
2n | = 34. |
= 34. |
Gaillardia pinnatifida |
Gaillardia pulchella |
|
Phenology | Flowering Mar–Oct, mostly May–Jul. | Flowering Jan–Dec, mostly May–Aug. |
Habitat | Clays or sandy soils, often disturbed places, in grasslands, desert scrub-lands, or pinyon woodlands | Sandy or calcareous soils, often disturbed places, mostly in grasslands or open places |
Elevation | 900–2000 m (3000–6600 ft) | 0–1800 m (0–5900 ft) |
Distribution |
AZ; CO; NM; NV; OK; TX; UT; Mexico (Chihuahua, Coahuila, Durango, Sonora)
|
AL; AZ; CO; CT; FL; GA; KS; ME; MO; MS; NC; NE; NH; NM; OK; SC; SD; TX; VT; Mexico (Chihuahua, Coahuila, Nuevo León, Sonora, and Tamaulipas)
|
Discussion | Some plants, especially from Arizona, included here in Gaillardia pinnatifida, have mostly narrow, undivided leaf blades (mostly 3–8+ mm wide, villous to sparsely strigillose; var. linearis) and intergrade with similar plants called G. multiceps, which have sparsely and minutely hispidulous or glabrate leaf blades. Plants from Utah with yellow disc corollas and densely gland-dotted leaves, included here in Gaillardia pinnatifida, have been recognized as G. flava. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Spring-flowering plants with most of their proximal leaves pinnately lobed or coarsely toothed, mainly found in south-central Texas, have been treated as var. australis (B. L. Turner and M. Whalen 1975). Plants from near or on beaches of the Atlantic and the Gulf of Mexico, usually with somewhat fleshy leaves and often persisting for more than one year, have been distinguished as var. picta. Cultivars of Gaillardia pulchella (or of hybrids between G. pulchella and G. aristata) are used horticulturally. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 21, p. 423. | FNA vol. 21, p. 425. |
Parent taxa | Asteraceae > tribe Heliantheae > subtribe Gaillardiinae > Gaillardia | Asteraceae > tribe Heliantheae > subtribe Gaillardiinae > Gaillardia |
Sibling taxa | ||
Synonyms | G. flava, G. gracilis, G. mearnsii, G. pinnatifida var. linearis | G. drummondii, G. neomexicana, G. picta, G. pulchella var. australis, G. pulchella var. picta |
Name authority | Torrey: Ann. Lyceum Nat. Hist. New York 2: 214. (1827) | Fougeroux: Hist. Acad. Roy. Sci. Mém. Math. Phys. (Paris, 4to) 1786: 5, fig. 1. (1788) |
Web links |