53. Aster taoyuenensis S. S. Ying, J. Jap. Bot. 63: 49. 1988.
桃园马兰 tao yuan ma lan
Herbs, perennial, 30-70 cm tall; rhizomes long, slender. Stems ascending, simple, branched distally, finely striate, moderately to densely villous proximally, strigillose distally, sparsely minutely stipitate glandular. Leaves cauline, not or slightly reduced upward; lowest leaves withered by anthesis, abaxially pale green (spongelike), adaxially green, shiny, abaxially strigose, minutely stipitate glandular in pits, adaxially scabridulous, margin slightly revolute, coarsely 3- or 4-serrate distally, teeth pointing forward, villous-ciliate, ± 3-veined, veins prominent abaxially, apex acuminate, mucronate; lowest leaves shortly winged petiolate; blade obovate to oblanceolate, ca. 2.5 cm (insufficient material), base attenuate, margin serrate; lower to upper leaves shortly petiolate (petiole to 0.3 cm); blade oblanceolate (proximally) to usually lanceolate, 5.2-6.5 × 1.5-2(-2.5) cm, base rounded; synflorescence leaves shortly petiolate, lanceolate, 2.2-4 × 0.8-1.3 cm, base rounded, margin 1-3-serrate or entire. Capitula 7-9 in terminal, loose corymbiform synflorescences; peduncles 1-4 mm, densely strigillose, minutely stipitate glandular in pits; bracts narrowly lanceolate to oblanceolate or linear-oblanceolate, scarious, erose. Involucres broadly campanulate to hemispheric, (3-)5 mm; phyllaries 3- or 4-seriate, unequal, green distally, apically strigillose and minutely stipitate glandular, sometimes slightly pitted, margin scarious, erose, purplish, ciliate, midvein more pronounced distally, ± translucent, apex acuminate, erose, purplish, ciliate; outer phyllaries narrowly ovate to oblong-lanceolate, 1.5-2 × ca. 0.5 mm; middle phyllaries oblong, 3-4 × ca. 0.9 mm, base hardened; inner phyllaries linear-oblong, 4-5 × 0.4-0.5 mm. Ray florets 8-15, white, tube apex sparsely hairy, lamina 7-10 × 1.5-1.8 mm, eglandular; disk florets greenish yellow, 3.5-4 mm, tube base flared, tube apex and limb base strigillose and minutely stipitate glandular, limb campanulate, ca. 2.5 mm, lobes spreading, narrowly triangular, 1.5-1.7 mm, abaxially minutely stipitate glandular. Achenes black to mottled purple, obovoid, slightly compressed, 2-2.5 mm, strigillose, minutely stipitate glandular, 2-ribbed (straw-colored). Pappus 4-seriate, with dirty white barbellate bristles; outermost bristles few, slender, 0.3-0.7 mm; outer bristles very few, slender, ca. 2 mm; inner bristles 2.5-3 mm, tapering; innermost bristles 3.2-3.3 mm, apically flattened. Fl. Jun-Aug.
● Damp rocky mountain ridges and slopes, Machilus-Castanopsis forests; 500-900 m. Taiwan.