Domain: Eukaryota
Kingdom: Plantae
Subkingdom: Viridaeplantae
Phylum: Tracheophyta
Subphylum: Euphyllophytina
Infraphylum: Radiatopses
Class: Magnoliopsida
Subclass: Dilleniidae
Superorder: Violanae
Order: Capparales
Suborder: Capparineae
Family: Brassicaceae
Genus: Hesperis
Specific epithet: oblongifolia - Schur
Botanical name: Hesperis oblongifolia Schur
Perennial herb. Trichomes unicellular, stems erect, basal leaves petiolate. Sepals oblong, erect, base of lateral pair strongly saccate . Petals purple, much longer than sepals; blade oblong, apex rounded, claw strongly differentiated. Stamens 6, strongly tetradynamous; anthers oblong, obtuse at apex. Nectar glands 2, lateral, ringlike; 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; stigma conical, 2-lobed, lobes prominent, connivent, decurrent. Seeds uniseriate, wingless, oblong, plump; seed coat reticulate , not mucilaginous when wetted; cotyledons incumbent.
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