Taraxacum hyparcticum Dahlst.

Species

Angiosperms > Asterales > Asteraceae > Taraxacum

Characteristics

Plants (3–)5–12(–30) cm; taproots occasionally branched. Stems 1–5, ascending to erect, pinkish to reddish or purplish, (barely exceeding foliage), glabrous or glabrate (rarely sparsely villous and villous distally). Leaves fewer than 10, usually patent, rarely erect; petioles sometimes narrowly winged; blades oblanceolate (often ± runcinate), 2–12+ × (0.3–)0.5–1.2 cm, bases attenuate, margins lobed deeply and regularly to denticulate or subentire, lobes 5–6 pairs, straight to retrorse, triangular to deltate, teeth triangular 0–1 on lobes or 1–4 shallow pairs if subentire, acute to ± obtuse, apices obtuse to ± acute, faces glabrous. Calyculi of 10–14, spreading to appressed (thinner than phyllaries), dark green, broadly ovate or ovate to oblong bractlets in 2–3 series, 6–10 × 3.4–5 mm, margins narrowly hyaline, scarious, apices abruptly acuminate to caudate, strongly horned, tip ± scarious, erose. Involucres dark green to bluish black or dark purplish green, narrowly campanulate, 15–30 mm. Phyllaries 8–14 in 2 series, lanceolate to lance-ovate, 1.5–3.5 mm wide, margins narrowly (outer) to widely scarious in proximal 1/3 (inner), narrowly so distally, apices long-acuminate, sometimes callous, hornless (rarely very small horns), tips white-scarious, erose, rounded. Florets 25–50; corollas cream-colored to white or pink-tinged distally, outer pinkish-striped abaxially, 15–20 × 1.2–3 mm. Cypselae tan or straw-colored to brown (or reddish brown), sometimes grayish, bodies obovoid to oblanceoloid, 3–3.7(–4) mm, mostly broad, cones conic, 0.4–0.7 mm, beaks slender, 3.5–4.5 mm, ribs 10–13 (5–6 prominent), mostly broad, faces proximally tuberculate, muricate in distal 1/2; pappi whitish or sordid, 5–5.5(–7) mm. 2n = [24, 32, 40? some erroneous reports in literature under this name from Eurasia].
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.12
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
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Hardiness (USDA) 4-9

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Distribution

Taraxacum hyparcticum world distribution map, present in Canada, Greenland, and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:249546-2
WFO ID wfo-0000044911
COL ID 7BLV8
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Taraxacum hyparcticum Taraxacum hyparcticum var. hyparcticum

Lower taxons

Taraxacum hyparcticum var. schamurinii