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FOC | Family List | FOC Vol. 20-21 | Asteraceae

37. Klasea Cassini in F. Cuvier, Dict. Sci. Nat. 35: 173. 1825.

麻花头属 ma hua tou shu

Authors: Zhu Shi & Ludwig Martins

Nikitinia Iljin; Schumeria Iljin.

Herbs, perennial. Leaves pinnatilobed, pinnatipartite, or pinnatisect, rarely undivided, rigid or soft, margin entire or toothed. Capitula homogamous, 1 or to many in a panicle, rarely compactly corymbose, solitary at end of stem and branches. Involucre globose, ovoid, hemispheric, or bowl-shaped. Phyllaries imbricate, rigid; middle phyllaries with apex acute to acuminate and often with apical spinule; inner phyllaries longest, papillose-puberulent at apex. Florets bisexual. Corolla purple to pink, rarely almost white; tube 1/3-1/2 as long as corolla. Stigmatic branches to 1(-3) mm. Achene glabrous, with a subentire apical rim. Pappus elements of one type, in several rows, whitish to yellowish brown, all ± same length or outer ones shorter, scabrid or finely barbellate.

About 45 species: N Africa, Asia, Europe; eight species in China.

All Chinese species belong to Klasea sect. Klasea.

1 Leaf blade adaxially scabrous with multicellular hairs but sometimes sparsely so   (2)
+ Leaf blade adaxially glabrous but margin sometimes pubescent   (4)
2 (1) Stems always simple, to 10 cm; margin of phyllaries black.   6 K. lyratifolia
+ Stems simple or branched, (10-)15-150 cm; margin of phyllaries purplish or pale-colored   (3)
3 (2) Middle phyllaries acuminate, with apical spinule 2.5-5 mm; leaf blade glandular with minute sessile glands.   3 K. dissecta
+ Middle phyllaries acute, with apical spinule 0.2-2 mm or without spinule; leaf blade not glandular.   8 K. centauroides
4 (1) Leaf blade glaucous, margin entire   (5)
+ Leaf blade green, margin dentate   (6)
5 (4) Involucre 1.5-3 cm in diam.; middle phyllaries with conspicuous black to dark brown area at apex.   1 K. marginata
+ Involucre 0.8-1.5 cm in diam.; middle phyllaries with inconspicuous brownish spot at apex.   2 K. cardunculus
6 (4) Stem to 15 cm, usually decumbent; involucre 1.8-2.5 cm in diam.   5 K. procumbens
+ Stem 15-80 cm, erect; involucre 1.1-1.7 cm in diam   (7)
7 (6) Spinule of middle phyllaries to 1 mm; leaf blade leathery with paler venation and margin white cartilaginous.   4 K. suffruticulosa
+ Spinule of middle phyllaries (1-)3-5 mm; leaf blade herbaceous, concolorous.   7 K. sogdiana

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