Long-Stalk Aster is a clump-forming perennial herb up
to about 30 cm across. Stems are erect, usually floppy, 15-100 cm tall,
hairless or sparsely hairy below, leafy throughout, but lower leaves
dying, and persistent, as last flower-heads open.
Inflorescence consists of solitary flower-heads or more usually in
few- to several-headed corymbs, often one shoot appearing as one large
corymb when in full flower. Flower-stalks are 4-14 cm long, sparsely
coarsely hairy, naked except for 1 or 2 narrow-lanceshaped scale-like
or leaf-like bracts, 9-20 x 2-4 mm, often in upper part, 1 often
subtending involucre. Flower-heads are radiate, up to 2.5 cm across,
fruiting flower-heads 1.0-1.7 cm across; involucre bell-shaped;
phyllaries biseriate, series usually appearing nearly equal, 7-15 long
x 1.5-3.5 mm wide, linear-lanceshaped, margins appearing coarsely
fringed with hairs, membranous, tips long-pointed; receptacle flat,
hollow. Ray florets are 18-38, female, in one series, flower often
deciduous but typically persists on fruiting flower-heads; ray limb
1.2-2.5 cm long, flower tube about 3.5 mm long, upper part and base of
ray limb sparsely velvet-hairy; style arms bifid. Disc florets are
numerous, hermaphrodite; flowers 4.5-7 mm long, dull yellow, throat
sparsely short-velvet-hairy outside, basal tube hairless; anther
cylinder included, anther collar distinct and broadened; style hairless
with swollen basal node; style arms divided, papillate outside. Leaves
are alternate, lower leaves stalked, leaf-stalks 0.5-5.0 cm long,
reddish-purple, grooved above, lower to upper stem leaves with
sheathing winged leaf-stalks, wings up to 3 mm wide narrowing upwards
towards blade, except for wingless leaf-stalks of basal leaves,
leaf-stalks and wings usually prominently hairy, especially on margins
or angles, blade 2.5-12 x 1.5-7 cm, herbaceous, elliptic to ovate or
cordiform, discolourous, mid-green above and often shiny in young
leaves, paler beneath, base wedge-shaped, rounded or heart-shaped,
midrib and primary venation, prominent beneath, reddish-purple towards
leaf base, midrib and primary venation ingrooved above giving a
bul-late appearance, margins usually coarsely toothed, at least on
basal leaves, teeth smaller and with a short sharp point in upper
leaves, tips pointed to tapering or sub-blunt. Achenes are 4-4.5 mm
long, compressed with 2 indistinct marginal veins, body densely
setuliferous, setulae pointed; carpopodium a narrow annulus; pappus
biseriate, outer series shorter and slightly broader than inner, about
1 mm long, inner series about 5.5 mm, capillary, barbellate, buff, tips
pointed. Long-Stalk Aster is found in Western Himalaya between Kashmir
and Nepal, at altitudes of about 1500-3100 m. Flowering:
August-October.
Identification credit: Tabish
Photographed in Dhanaulti, Uttarakhand.
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The flower labeled Long-Stalk Aster is ...