Herbs perennial, bulbiferous. Bulbs truncate basally, sometimes elongate and tapering apically, covered with a tunic; tunic usually hairy inside. Stem simple or occasionally branched, proximal part usually underground. Leaves basal and cauline, spaced or ± crowded, rarely opposite, sessile and clasping at base, linear to narrowly ovate. Inflorescence usually 1-flowered; bracts absent or sometimes present. Flowers bisexual, erect, campanulate to saucer-shaped. Tepals 6, free, often colored, outer and inner ones different in shape, apex usually with a minute tuft of white hairs. Stamens 6, equal or 3 longer; filaments sometimes hairy; anthers basifixed. Ovary 3-loculed; ovules many per locule. Style columnar or very short; stigma 3-lobed. Fruit a loculicidal capsule. Seeds flat, usually subdeltoid.
Herbs, perennial, scapose or subscapose, bulbose; bulbs often stoloniferous, tunicate, papery to coriaceous; tunics variously hairy or glabrous adaxially. Leaves 2–6(–12), cauline, alternate, reduced distally; blade linear to oblong, somewhat fleshy. Inflorescences 1(–4)-flowered, bracts usually absent. Flowers: perianth campanulate to cup-shaped; tepals caducous, 6, distinct, often blotched near base, petaloid, ± equal; nectaries absent; stamens 6, distinct; filaments shorter than tepals, basally dilated; anthers basifixed, linear to narrowly elliptic, introrse; ovary superior, 3-locular; style very short or absent; stigma prominently 3-lobed. Fruits capsular, ellipsoid to subglobose, 3-angled, leathery, dehiscence loculicidal. Seeds many, in 2 rows per locule, flat. x = 12.
"Tep 6, essentially alike, separate, erect or ascending at anthesis to form a campanulate or stoutly cylindric fl; stamens 6, filaments shorter than the perianth; anthers oblong-linear, introrse, basifixed; ovules numerous; style short or virtually wanting; capsule loculicidal; perennial herbs from coated bulbs, bearing an erect stem with a few oblong to linear lvs and a large erect, usually solitary fl. 100, temp. Eurasia."
Botschantzeva, Z. P. 1982. Tulips: Taxonomy, Morphology, Cytology, Phytogeography and Physiology, transl. and ed. H. Q. Varekamp. Rotterdam. Hall, A. D. 1940. The Genus Tulipa. London. Pavord, A. 1999. The Tulip. New York, London, and Bloomsbury.
|Tulip, tulipe, tulipán [Persian thoulyban or Turkish tulbend, turban, alluding to the shape of the just-opening perianth]|