Lavandula L.

Lavender (en), Lavande (fr)

Genus

Angiosperms > Lamiales > Lamiaceae

Characteristics

Plants small shrubs, rarely herbs. Verticillasters 2-10-flowered, in crowded terminal spikes; bracteoles small or absent. Flowers short pedicellate or subsessile. Calyx ovoid-tubular to tubular, slightly dilated in fruit, straight, 13-15-veined, 2-lipped; upper lip entire, protracted into an appendage; lower lip equally (2-)4-toothed, teeth narrower than those of upper lip. Corolla blue or purple; tube exserted, throat ± dilated; limb 2-lipped, upper lip 2-lobed, lower 3-lobed. Stamens 4, included, anterior 2 longer; anther cells apically confluent. Style inserted at ovary base, apex 2-cleft, lobes flattened, ovate, connate. Nutlets smooth, shiny, each with a basal-dorsal areole.
More
Perennial herbs or small shrubs. Lvs usually simple, occasionally pinnate. Verticels forming lax or dense, terminal, simple or branched spikes. Bracts very variable but differing distinctly from lvs and sometimes forming a terminal plume. Calyx tubular, (8)-13-(15)-nerved, not gibbous at base, 5-toothed; posterior tooth often enlarged and sometimes with an appendage. Corolla ± 2-lipped, hairy outside, at least on limb, usually blue, mauve or purplish (sometimes white or pink in cvs); lobes almost equal. Stamens 4, included, declined. Style gynobasic, its branches equal. Nutlets glabrous, generally smooth, with a pale areole denoting area of attachment.
Life form perennial
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Foliage retention deciduous
Sexuality hermaphrodite
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Hardiness (USDA) 6-12

Usage

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Cultivation

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