WorldFloraDB - Liatris pycnostachya

Characteristics

Plants (40–)60–120(–180) cm. Corms globose, sometimes becoming elongate rhizomes. Stems glabrous or densely piloso-puberulent. Leaves: basal and proximal cauline 3–5-nerved, linear to narrowly oblanceolate or oblanceolate, 110–220 × 4–10(–12) mm, gradually then abruptly reduced distally (bractlike proximal to heads), essentially glabrous or sparsely pilose to densely piloso-puberulent, weakly gland-dotted (bases of basal usually fibrous-persistent). Heads in dense, spiciform arrays. Peduncles usually 0, rarely (spreading to ascending) 1–2 mm. Involucres campanulate-cylindric, 7–9(–10) × 3.5–5 mm. Phyllaries (reflexed or curving-spreading) in 4–5 series, oblong-lanceolate, unequal, essentially glabrous or ± pilose, margins with hyaline borders, sometimes ciliate, apices usually acute to acute-acuminate (sometimes distally dilated, nearly petaloid). Florets (4–)5–8; corolla tubes glabrous inside. Cypselae 3.8–4.5(–5) mm; pappi: lengths ± equaling corollas, bristles barbellate.

More

Strict, 5–15 dm, ± hirsute in the infl (including the axis) or throughout, seldom glabrous; lvs numerous, linear or nearly so, the lower ones 10–50 cm × 3–13 mm, the others reduced upward; heads sessile, crowded in an elongate, densely spiciform infl; invol subcylindric or narrowly turbinate, 8–11 mm, its bracts tapering to an acuminate, conspicuously squarrose tip, or the inner ones sometimes blunter and loosely erect; fls 5–7(–12) per head, the cor 7–9 mm including the 2–2.5 mm lobes, glabrous or very nearly so within; pappus barbellate; 2n=20, 40. Moist or dry prairies and open woods; Ind. and Ky. to Minn., N.D., Tex., and Miss., and intr. e. to N.J. and w. N.Y. July–Sept.

Life form

perennial

Growth form

herb

Growth support

free-standing

Foliage retention

deciduous

Sexuality

hermaphrodite

Pollination

-

Spread

-

Mature width (meter)

0.1 - 0.5

Mature height (meter)

1.0 - 1.2

Root system

rhizome

Rooting depth (meter)

0.3

Root diameter (meter)

0.3

Flower color

Blooming months

Jan	Feb	Mar
Apr	May	Jun
Jul	Aug	Sep
Oct	Nov	Dec

Fruit color

-

Fruiting months

-

Nitrogen fixer

-

Photosynthetic pathway

-

Environment

Light
Soil humidity
Soil texture
Soil acidity
Soil nutriment	-
Hardiness (USDA)

Usage

Uses	environmental use medicinal
Edible	-
Therapeutic use	-
Human toxicity	-
Animal toxicity	-

Cultivation

Can be grown by cuttings, divisions or seedlings.

Mode	cuttings divisions seedlings
Germination duration (days)	-
Germination temperacture (C°)	-
Germination luminosity	-
Germination treatment	-
Minimum temperature (C°)	-40
Optimum temperature (C°)	-
Size	-
Vigor	-
Productivity	-