Symphyotrichum patens (Aiton) G.L.Nesom

Late purple aster (en)

Species

Angiosperms > Asterales > Asteraceae > Symphyotrichum

Characteristics

Perennials, 10–100(–120) cm, cespitose; with short, thick, woody caudices, tangled or sometimes cormoid, and long rhizomes. Stems 1–5+, ascending to erect (often stout, light to dark brown), sparsely to densely scabroso-hirsute to cinereo-puberulent, or villous distally. Leaves (light to dark green) thick and often stiff (margins flat, sometimes undulate), scabrous; basal early deciduous, subpetiolate (petioles winged, sheathing), blades spatulate to obovate, 30–70 × 10–30 mm, bases cuneate, margins entire to ± serrulate, scabrous, apices acute to rounded, faces scabroso-hirsute; proximal cauline sessile, blades usually ovate to lanceolate, rarely spatulate, (20–)30–70(–100) × 10–30(–40) mm, reduced distally, bases strongly cordate-clasping to auriculate-amplexicaul (broadened below constriction), apices acute, faces (grayish green) rugulose, hairy (abaxial inconspicuously veined, adaxial reticulately veined, hairier along veins); distal sessile, blades narrowly to broadly ovate, 15–35 × 4–13 mm, much reduced on branches, bases strongly cordate-clasping to auriculate-amplexicaul, apices usually acute, sometimes obtuse, mucronate to white-spinulose, faces scabrous, sometimes sparsely to moderately stipitate-glandular. Heads in paniculiform arrays, branches divaricate (heads 1–5+ per branch), terminal shoot often not flowering. Peduncles stiffly ascending, slender, 2–10(–15) cm, scabroso-hirsute to cinereo-puberulent, bracts appressed to spreading, linear, 1–5 mm, grading into phyllaries. Involucres campanulate, 5.5–12 mm. Phyllaries in 4–7(–8) series, appressed or often slightly recurved-spreading or squarrose, ovate-lanceolate to linear, strongly unequal, bases (tan) ± indurate in proximal 1 / 3 – 1 / 2 , margins hyaline, erose, distally scabroso-ciliolate to ciliolate, green zones diamond-shaped, in distal 1 / 5 – 1 / 3 , apices (outer) obtuse to acute, appressed to squarrose, (inner) acuminate, often purplish red, faces strigillose or cinereo-puberulent abaxially and near tip adaxially, sometimes moderately stipitate-glandular distally. Ray florets 12–24+; corollas light lavender-violet to mauve, rarely white to pinkish, laminae 10–18(–20) × 1–3 mm. Disc florets 20–50; corollas yellow, cream, or white turning purple, (4.5–)5.5–7.5 mm, tubes shorter than narrowly funnelform throats, lobes triangular, 0.5–1 mm (glabrous or lobes thinly puberulent). Cypselae dull purple or brown, obovoid to oblong-obovoid, not compressed, 2–3.5 mm, 7–10-nerved (faint), faces sericeous or strigillose; pappi tawny, sometimes rose-tinged, 4.5–6.5 mm.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.8
Root system rhizome
Rooting depth (meter) 0.3
Root diameter (meter) -
Flower color -
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

Light 3-3
Soil humidity 5-5
Soil texture -
Soil acidity 1-8
Soil nutriment -
Hardiness (USDA) 4-9

Usage

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

Cultivation

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

Images

Symphyotrichum patens unspecified picture

Distribution

Symphyotrichum patens world distribution map, present in Canada, Germany, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:981873-1
WFO ID wfo-0000084749
COL ID 53Q8T
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Symphyotrichum patens Virgulus patens Lasallea patens Aster amplexicaulis Aster patens Aster alatus Aster virgatus Aster auritus Aster undulatus Aster patens f. patens Aster auritus Symphyotrichum patens var. patens Virgulus patens var. patens

Lower taxons

Symphyotrichum patens var. patentissimum Symphyotrichum patens var. gracile