An accepted name in the RHS Horticultural Database.
Herbs perennial (or shrubs or annuals), with rhizomes, bulbs, or corms. Leaves alternate, often 2-ranked, often oriented edgewise to aerial stem, usually sword-shaped to linear, parallel veined, base sheathing. Inflorescence sometimes a spike or reduced to a solitary flower, more often of monochasial, umbellate cymes, each enclosed in 2 opposed bracts (spathes) and termed a rhipidium, which may be solitary and terminal or numerous and variously arranged in racemes or panicles; bracts 1 to several. Flowers bisexual, showy, usually actinomorphic (often zygomorphic elsewhere) . Perianth segments 6, in 2 whorls, inner and outer ones equal or differing in size and/or color; tube filiform or trumpet-shaped. Stamens (2 or) 3; anthers extrorse. Ovary inferior (or superior), 3-loculed; ovules few to many; placentation axile. Style with filiform, slender, or petaloid branches. Fruit a loculicidal capsule. Seeds with or without aril and wings.
Between 70 and 80 genera and ca. 1800 species: nearly worldwide, especially S Africa, Asia, and Europe; three genera and 61 species (21 endemic, one introduced) in China.[1]
There are approximately 142 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them: B. 'Blue Gem' · B. 'Laura' · B. 'Purple Star' · B. 'White King' · B. 'Zwanenburg's Glory' · B. adpressa · B. ambigua · B. angusta · B. angustifolia (Baboon Flower) · B. atrocyanea · B. atrodeltoidea · B. attenuata · B. auriculata · B. bainesii · B. bakeri · B. blanda · B. brachystachys · B. buchubergensis · B. caerulescens · B. caesia · B. carminea · B. cedarbergensis (Baboon Flower) · B. crispa · B. cuneata · B. cuneifolia · B. curviscapa · B. densiflora · B. disticha · B. dregei · B. ecklonii · B. erectifolia · B. falcata · B. fastigiata · B. fimbriata · B. flabellifolia · B. flavida · B. flavocaesia · B. foliosa · B. fourcadei · B. fragrans · B. framesii · B. framesii var. kamiesbergensis · B. gawleri · B. geniculata · B. gladiola · B. hiemalis · B. horizontalis · B. hybrids · B. hypogaea · B. hypogala · B. hypogea · B. intermedia · B. klaverensis · B. lata · B. latifolia · B. leipoldtii · B. lewisiana · B. lilacina · B. lineolata · B. lobata · B. longibracteata · B. longicollis · B. longiflora · B. macrantha · B. maculata · B. minuta · B. mononeura · B. montana · B. mucronata · B. multiflora · B. namaquensis · B. nana (Baboon Flower) · B. obliqua · B. obtusifolia · B. occidentalis · B. ochroleuca · B. odorata · B. orthosantha · B. parviflora · B. patersoneae · B. patersoniae · B. patula · B. pauciflora · B. pilosa · B. planifolia · B. plicata · B. praemorsa · B. pubescens · B. pulchella · B. pulchra · B. punctata · B. punicea · B. purpurea · B. pygmaea · B. quadripartita · B. reflexa · B. regia · B. ringens (Baboon Flower) · B. rosea · B. rubro-cyanea
There are approximately 1,753 species, subspecies, varieties, forms, and cultivars in this genus. Here are just 100 of them: T. humilis matinae · T. hungarica rhodopea · T. hungarica undulatifolia · T. 'Aafke' (Single Early Tulip) · T. 'Abba' (Double Early Tulip) · T. 'Abbe Pierre' (Triumph Tulip) · T. 'Abbey Dream' (Lily Flowered Tulip) · T. 'Abbey Road' (Triumph Tulip) · T. 'Abigail' (Double Late Tulip) · T. 'Abra Elite' (Triumph Tulip) · T. 'Abra' (Triumph Tulip) · T. 'Absalon' (Rembrandt Tulip) · T. 'Abu Hassan' (Triumph Tulip) · T. 'Acapulco' (Darwin Hybrid Tulip) · T. 'Acceber' (Triumph Tulip) · T. 'Acropolis' (Darwin Hybrid Tulip) · T. 'Ad Rem' (Darwin Hybrid Tulip) · T. 'Ad Rem's Beauty' (Darwin Hybrid Tulip) · T. 'Adamo' (Triumph Tulip) · T. 'Addis' (Greigii Tulip) · T. 'Adriaan T Dominique' (Viridiflora Tulip) · T. 'Aesculapius' · T. 'African Queen' (Triumph Tulip) · T. 'Aga Khan' · T. 'Agape' (Fringed Tulip) · T. 'Agesthis' (Double Early Tulip) · T. 'Agrass Gold' (Triumph Tulip) · T. 'Agrass White' (Triumph Tulip) · T. 'Ajax' (Triumph Tulip) · T. 'Akela' (Single Late Tulip) · T. 'Akita' (Lily Flowered Tulip) · T. 'Alabama Star' (Single Late Tulip) · T. 'Alabaster' (Darwin Hybrid Tulip) · T. 'Aladdin' (Lily Flowering Tulip) · T. 'Aladdin's Record' (Aladdin's Record Lily Flowering Tulip) · T. 'Alaska' · T. 'Albert Heijn' (Fosteriana Tulip) · T. 'Albino' · T. 'Albion Star' (Greigii Tulip) · T. 'Albury' (Triumph Tulip) · T. 'Alegria' (Triumph Tulip) · T. 'Aleppo' (Fringed Tulip) · T. 'Alexander Pushkin' · T. 'Alfi' (Triumph Tulip) · T. 'Alfred Cortot' · T. 'Alfred Heineken' (Triumph Tulip) · T. 'Ali Baba' · T. 'Alice Leclercq' · T. 'All Bright' · T. 'Allegretto' (Double Late Tulip) · T. 'Alliance' (Triumph Tulip) · T. 'Allure' (Triumph Tulip) · T. 'Amazone' (Triumph Tulip) · T. 'Ambassador' (Triumph Tulip) · T. 'American Dream' (Darwin Hybrid Tulip) · T. 'American Eagle' · T. 'Amethyst' (Parrot Tulip) · T. 'Amor' (Double Late Tulip) · T. 'Amsterdam' (Triumph Tulip) · T. 'Amulet' · T. 'Analita' (Fosteriana Tulip) · T. 'Anastasia' (Triumph Tulip) · T. 'Ancilla' · T. 'Andre-rieu' (Single Late Tulip) · T. 'Angel's Eye' (Single Late Tulip) · T. 'Angel's Kiss' (Single Late Tulip) · T. 'Angélique' (Angelique Peony-Flowered Tulip) · T. 'Anna José' (Triumph Tulip) · T. 'Annaconda' (Single Late Tulip) · T. 'Anne Claire' (Triumph Tulip) · T. 'Anneke' (Triumph Tulip) · T. 'Annelinde' (Double Late Tulip) · T. 'Annie Salomons' · T. 'Annie Schilder' (Triumph Tulip) · T. 'Antarctica' · T. 'Anthony Eden' (Double Early Tulip) · T. 'Antoinette' (Single Late Tulip) · T. 'Antonio Moro' · T. 'Antwerp' · T. 'Apeldoorn Elite' (Darwin Hybrid Tulip) · T. 'Apeldoorn' (Darwin Hybrid Tulip) · T. 'Apeldoorn's Elite' · T. 'Apricot Beauty' (Triumph Tulip) · T. 'Apricot Dream' · T. 'Apricot Impression' (Darwin Hybrid Tulip) · T. 'Apricot Jewel' · T. 'Apricot Magic' (Single Early Tulip) · T. 'Apricot Parrot' (Parrot Tulip) · T. 'April Love' (Triumph Tulip) · T. 'April Moon' (Single Late Tulip) · T. 'Arabian Magic' · T. 'Arabian Mystery' (Triumph Tulip) · T. 'Aria' (Fringed Tulip) · T. 'Ariane' (Triumph Tulip) · T. 'Arie Alkemade's Memor' · T. 'Arie Alkemades Memory' (Double Early Tulip) · T. 'Arie Design' · T. 'Arie Hoek' (Triumph Tulip) · T. 'Aristocrat' (Single Late Tulip) · T. 'Arlington' (Single Late Tulip)
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