Brassia R.br. In W.t.aiton

Genus

Angiosperms > Asparagales > Orchidaceae

Characteristics

Erect, epiphytic herbs with short stems usually thickened into conspicuous pseudobulbs that are infrequently rudimentary and inconspicuous or rarely entirely absent, the 1-3 leaves at the apex enveloped in several foliaceous or papery bracts, the conduplicate leaf bases distichously imbricating and forming a broad or narrow fan. Inflorescences 1-2 erect or arching, few-to many-flowered racemes produced from the bases of the pseudobulbs or concurrently with the flush of new growth, or, if the plants are pseudobulbless, from the axils of the leaves. Flowers usually large and conspicuous, subtended by small and inconspicuous, or elongate spath-aceous bracts. Sepals free, spreading, narrowly acuminate or caudate, sometimes of about equal length but more frequently with the lateral sepals conspicuously longer. Petals subequal to the dorsal sepal or smaller. Lip entire or obscurely 3-lobed, spreading, shorter than the sepals, the base sessile and adnate to the base of the column, the disk usually bilamellate. Column short, erect, without wings or appendages, the clinandrium scarcely prominent, usually truncate. Anther terminal, operculate, incumbent, 1-celled or imperfectly 2-celled; pollinia 2, waxy.
More
Herbs, epiphytic, ± cespitose. Stems either reduced and covered with sheathing bracts or elongate with prominent, single-noded pseudobulb. Leaves 1(–2) per sympodium, from apex of pseudobulb, often with 1–3 short foliaceous bracts subtending single-noded pseudobulb; blade conduplicate, oblong-lanceolate, dorsiventrally flattened, margins entire. Inflorescences lateral, racemes; bracts narrowly triangular. Flowers: sepals and petals distinct and free, long, attenuate-caudate; lip unlobed; callus prominent, 2-lamellate; column without appendages, footless; stigmatic cavity ± round; rostellum not prominent. Fruits capsules.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.5 - 1.0
Mature height (meter) 0.5 - 1.0
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-6
Soil humidity -
Soil texture -
Soil acidity 3-7
Soil nutriment -
Hardiness (USDA) 11-12

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions.
Mode divisions
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -