Liatris chapmanii |
Liatris lancifolia |
|
---|---|---|
Chapman's blazing star, Chapman's gayfeather |
Great Plains gayfeather, lanceleaf blazing star |
|
Habit | Plants 35–75(–150) cm. | Plants (20–)40–80 cm. |
Stems | hirtellous. |
glabrous. |
Leaves | basal and proximal cauline 1-nerved, spatulate-oblanceolate to narrowly oblanceolate, 40–150(–180) × 4–8(–11) mm, abruptly reduced (linear, 1–2 mm wide), then gradually reduced distally, essentially glabrous or hirtellous (sometimes mostly along abaxial midveins), gland-dotted. |
basal and lower cauline 3–5-nerved, narrowly oblong-lanceolate to narrowly spatulate-oblanceolate, 60–180(–330) × 6–12(–15) mm (usually becoming more densely arranged distally), abruptly reduced near midstem (continuing densely to immediately proximal to heads), essentially glabrous, gland-dotted (bases of basal often fibrous-persistent). |
Peduncles | 0. |
0. |
Involucres | cylindric, 8–12 × 3.5–5 mm. |
turbinate-cylindric to turbinate-campanulate, 7–9 × 4–7 mm. |
Florets | 3–4; corolla tubes glabrous inside. |
5–8(–12); corolla tubes glabrous inside. |
Phyllaries | in 3(–4) series, oblong to oblong-lanceolate, unequal, usually glabrous, rarely minutely puberulent, margins with hyaline borders, apices acute to acuminate. |
in 3–4 series, ovate to oblong, unequal, glabrous, margins with hyaline borders, sometimes ciliolate, apices rounded to obtuse. |
Heads | (appressed, overlapping) in dense, spiciform arrays. |
in dense, spiciform arrays. |
Cypselae | (3–)4–6 mm; pappi: lengths ± equaling corollas, bristles barbellate. |
4–4.5 mm; pappi: lengths ± equaling corollas, bristles barbellate. |
Corms | globose to elongate. |
globose. |
2n | = 20. |
= 20. |
Liatris chapmanii |
Liatris lancifolia |
|
Phenology | Flowering Aug–Oct. | Flowering Jul–Sep. |
Habitat | Dunes, beach strands, sand ridges, fields, roadsides, longleaf pine savannas, longleaf pine-turkey oak, turkey oak, evergreen oak-sand pine-scrub, scrub with Ceratiola and Pinus clausa | Prairies (often wet or moist), banks of spring-fed streams, sandy and sandy-clay soils, saline sites |
Elevation | 0–50 m (0–200 ft) | 500–1500 m (1600–4900 ft) |
Distribution |
AL; FL; GA
|
CO; KS; NE; NM; SD; TX; WY |
Discussion | The abrupt size reduction of cauline leaves in Liatris lancifolia is similar to that of L. spicata var. resinosa; the long, dense spikes and wider basal leaves are more like those of L. spicata var. spicata. Little differentiation exists between L. lancifolia and L. spicata, but L. lancifolia is maintained here at specific rank, coordinate with L. spicata, primarily because of its wide geographic disjunction and generally different habitat. Recognition that the two elements within L. spicata have a nearly analogous relationship of range and habitat might provide rationale for treating all three of these closely similar taxa at equivalent rank. Liatris lancifolia is expected in Oklahoma. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
|
Source | FNA vol. 21, p. 526. | FNA vol. 21, p. 523. |
Parent taxa | Asteraceae > tribe Eupatorieae > Liatris | Asteraceae > tribe Eupatorieae > Liatris |
Sibling taxa | ||
Synonyms | Lacinaria chapmanii | Lacinaria lancifolia, L. kansana |
Name authority | Torrey & A. Gray: Fl. N. Amer. 2: 502. (1843) | (Greene) Kittell: in I. Tidestrom and T. Kittell, Fl. Ariz. New Mex., 370. (1941) |
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