Senecio thianschanicus Regel & Schmalh.

Species

Angiosperms > Asterales > Asteraceae > Senecio

Characteristics

Herbs, dwarf, rhizomatous. Stems solitary or several fasciculate, ascending or erect, 5-20 cm tall, simple or sometimes branching from base, sparsely arachnoid when young, ± glabrescent. Basal and lower stem leaves mostly present at anthesis, petiolate; blade adaxially green, obovate or spatulate, 4-8 × 0.8-1.5 cm, abaxially ± arachnoid-pubescent and ± glabrescent to glabrous, adaxially subglabrous or glabrous, base attenuate into petiole, margin subentire, shallowly dentate, or pinnatifid, apex obtuse to subacute. Median stem leaves sessile; blade oblong or oblong-linear, 2.5-4 × 0.5-1 cm, pinnately veined, base subamplexicaul, margin shallowly dentate to pinnatifid or rarely pinnatipartite, apex obtuse. Upper leaves smaller, linear or linear-lanceolate, margin ± entire. Capitula radiate, 2-10 in lax terminal corymbs, rarely solitary; peduncles 0.5-2.5 cm, ± arachnoid; bracteoles linear or linear-subulate, 3-5 mm, apically acute. Involucres campanulate, 6-8 × 3-6 mm, calyculate; bracts of calyculus 4-8, 3-5 mm, apically acuminate, often purplish; phyllaries ca. 13, linear-oblong, 6-7 × 1-1.5 mm, usually dark colored and often fimbriate, or villous, herbaceous, sparsely arachnoid, glabrescent, margin scarious, apically acuminate. Ray florets ca. 10; corolla tube ca. 3 mm; lamina yellow, oblong-linear, 5-6 × 1.5-2 mm, 4-veined, apically obtuse, 3-denticulate. Disk florets ca. 26 or 27; corolla yellow, 6-7 mm, with 3-3.5 mm tube and funnelform limb; lobes oblong-lanceolate, ca. 1.2 mm, apically acute, papillose. Anthers linear, ca. 2 mm, basally obtuse-auriculate, appendages ovate-lanceolate; antheropodia balusterform, basally dilated. Style branches ca. 1 mm. Achenes cylindric, 3-3.5 mm, glabrous. Pappus white, ca. 8 mm. Fl. Jul-Sep.
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Growth form herb
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Mature height (meter) 0.05 - 0.2
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Blooming months
JanFebMar
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JulAugSep
OctNovDec
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Environment

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Hardiness (USDA) 5-10

Usage

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Cultivation

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Germination duration (days) 10 - 21
Germination temperacture (C°) 18 - 23
Germination luminosity light
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Distribution

Senecio thianschanicus world distribution map, present in China, Kazakhstan, Kyrgyzstan, Myanmar, and Tajikistan

Identifiers

LSID urn:lsid:ipni.org:names:247942-1
WFO ID wfo-0000120543
COL ID 4WNGH
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Senecio acromaculatus f. elatus Senecio thianschanicus Senecio kawaguchii Senecio acromaculatus Senecio drummondii Senecio acromaculatus f. acromaculatus