foc
《中国植物志》英文修订版
Flora of China
  FOC Vol.8 (2001)              | Family List  Brassicaceae  PDF Hesperis  PDF   |  eFloras.org Link Font:+ Big | - Small
   75. Hesperis  Linnaeus
香花芥属   xiang hua jie shu
  

  

Herbs biennial, or perennial. Trichomes unicellular, simple and/or forked, these often mixed with glandular ones with a unicellular gland on a few-celled, uniseriate stalk. Stems erect, often simple. Basal leaves petiolate, usually rosulate, entire, dentate, or pinnately divided. Cauline leaves petiolate or sessile, similar to basal, sometimes auriculate or amplexicaul at base. Racemes bracteate or ebracteate, elongated in fruit. Fruiting pedicels slender or thickened, divaricate or reflexed. Sepals oblong or linear, erect, base of lateral pair strongly saccate. Petals white, lavender, purple, yellow, orange, brownish, or green, much longer than sepals; blade obovate or oblong, apex rounded or obtuse; claw strongly differentiated. Stamens 6, strongly tetradynamous; anthers oblong or linear, obtuse at apex. Nectar glands 2, lateral, ringlike or lunar; median glands absent. Ovules 4-40 per ovary. Fruit tardily dehiscent siliques, linear, terete, 4-angled, or slightly latiseptate, sessile; valves with a prominent midvein, torulose; replum rounded; septum complete, membranous; style obsolete or short; stigma conical, 2-lobed, lobes prominent, connivent or free, decurrent. Seeds uniseriate, wingless, oblong, plump; seed coat reticulate, not mucilaginous when wetted; cotyledons incumbent.

About 25 species: primarily C and SW Asia and SE Europe; two species (one introduced) in China.

  
1Plants eglandular or sparsely glandular; upper leaves shortly petiolate; eglandular trichomes simple and forked1  H. matronalis    欧亚香花芥
+Plants densely glandular; upper leaves sessile; eglandular trichomes exclusively simple2  H. sibirica    北香花芥
   
   Lower Taxon
  • Hesperis matronalis  Linnaeus  欧亚香花芥
  • Hesperis sibirica  Linnaeus  北香花芥