Taraxacum aequilibratum

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Taraxacum aequilibratum

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Systematics

The sectional position of this species is unclear. (Kirschner & al. 2020: 392).A

Description

"Plants medium-sized, usually to 12–13 cm tall. Petiole grey-purple, narrow, unwinged, arachnoid; plant base with dense yellowish white hairs, tunic not developed. Leaves ± mid-green to lighter green, usually with bronze-purple mid-vein, oblanceolate in outline, usually 6–11 × 1.5–4 cm, sparsely arachnoid, pinnatisect, similar to those of T. pulchrifolium in general appearance, with 3–5 pairs of patent, linear-triangular to linear, acute lateral segments, distal margin usually ± subconcave, entire or with one or a few filiform teeth, or rarely with a deep incision forming a patent secondary segment, proximal margin usually straight and entire, sometimes with a raised and purplish margin at base; interlobes distinct, 2–3 (–4) mm wide, most often with 1–3 filiform teeth; terminal segment ± tripartite, witha broader, narrowly triangular, acute, entire or sparsely incised middle part and sublinear, patent, acute basal lobules. Scapes brownish green, often suffused purplish, arachnoid, ± overtopping leaves. Capitulum yellow, 3–3.5 cm wide. Involucre dark green, not pruinose, 9–10 mm wide and broadly rounded to subtruncate at base. Outer phyllaries usually 15–20, ± not imbricate but often of unequal length, mostly erect-patent, linear-lanceolate, usually (6–) 7–9 × 1.7–2.7 mm, surface mid-green, deep green or dark blackish green, often with a distinct, blackish mid-vein and visible venation, border not distinct, membranous, 0.1–0.2 mm wide, phyllaries often suffused purplish along borders and distally, margins conspicuously ciliate, apex usually callose; inner phyllaries 14–15 mm long, with callose apex. Outer ligules ± flat, striped grey-purplish outside, inner ligule teeth dirty yellow, greyish or disrty purplish. Anthers polliniferous, pollen grains irregular in size. Stigmas greyish green, with blackish pubescence outside. Achenes light greyish stramineous-brown, 3.9–4.2 × 0.9–1.0 mm, body ± densely covered with suberect robust incised squamules and some ± short thick spinules in upper 1/5–1/3, some squamules also on cone base, body ± subgradually to subabruptly narrowing into a short subcylindrical cone 0.4–0.6 mm long; beak thin, 7–9 mm long, pappus almost white, ca. 5.5 mm long. Agamosperm."

from Kirschner & al. (2020: 390-392)A

Distribution

Asia-Tropical: West Himalaya (Jammu-Kashmir nativeA)

Bibliography

A. Kirschner J., Štěpánek J., Klimeš L. & al., The Taraxacum flora of Ladakh, with notes on the adjacent regions of the West Himalaya in Phytotaxa 457: 1-409. 2020