Taraxacum sect. Stenoloba

Primary tabs

Taraxacum sect. Stenoloba

no image available

Description

Leaves usually pinnatisect to deeply dissected. Outer phyllaries usually numerous, ovate-lanceolate to linear-lanceolate, most often loosely appressed to recurved at apex or ± patent, narrowly pale bordered, outer and/or inner ones usually corniculate to horned. Florets yellow. Achene narrow, almost smooth below, ± densely spinulose in upper ca. 1/4; body usually gradually to subgradually narrowing into a ± thin cylindric or rarely subcylindric usually 0.9–1.2 × 0.2–0.3 mm cone, spinules minute; beak 7–9 mm, thin.

from: Ge X., Kirschner J. & Štěpánek J. in Wu Z. Y. & al. (ed.), Flora of China 20–21: 278. 2011, Beijing & St Louis.


Plants medium-sized or slender. Leaves usually araneous, more densely near their base, deeply lobate to dissected with often narrow, subpatent lobes. Scapes ± araneous. Outer involucral bracts loosely appressed, erecto-patent, subpatent to ± arcuate, numerous (13–21), greenish, usually with narrow but distinct, paler or reddish margins, ovate-lanceolate to linear-lanceolate, corniculate or with horns at the apex. Flowers yellow, ligules flat. Pollen absent or present, then of variable size. Achenes pale greyish or stramineous brownish, narrow (less than 0.9–1.0 mm), ± densely minutely spinulose with acute straight spinules, ± gradually narrowing in a narrow (0.2–0.3 mm in diam.), cylindrical or subcylindrical cone usually 0.9–1.2mm long; rostrum thin, 7–9mm long, pappus white or yellowish (dirty) white, ca. 6–7 m long. Flowering time: late May to June, rarely later.

from: Kirschner & Štěpánek in Folia Geobot. 39: 261. 2004.

Distribution

Asia-Temperate: Altay (Altaynative); Amurnative; Buryatiya (Buryatiyanative); China North-Central (Beijingnative, Hebeinative, Shanxinative); China South-Central (Sichuannative); Chita (Chitanative); Inner Mongolia (Nei Mongolnative); Irkutsk (Irkutsknative); Kazakhstan (Kazakhstannative); Khabarovsknative (Khabarovsknative); Kirgizistan (Kirgizistannative); Manchuria (Heilongjiangnative, Jilinnative, Liaoningnative); Mongolianative (Mongolianative); Primoryenative (Primoryenative); Sakhalindoubtfully present; Tibet (Tibetnative); Xinjiang (Xinjiangnative)

Common names

Chinese (China): 深裂蒲公英组 shen lie pu gong ying zuA

Bibliography

A. Wu & al., Flora of China 20-21. 2011