Habenaria arenaria Lindl.

Species

Angiosperms > Asparagales > Orchidaceae > Habenaria

Characteristics

Plants slender, 160-410 mm; basal leaves 2 (-3), spreading, narrowly to broadly elliptic, acute, to 170 x 50 mm, immaculate or indistinctly mottled with grey when fresh, with 2-4 smaller cauline leaves grading into the bracts. Inflorescences lax, few-to many-flowered; bracts lanceolate, acuminate, 8-18 mm long; ovary with pedicel curved, pedicel 5-8 mm long, ovary 10-12 mm long. Flowers green. Median sepal erect, shallowly concave, broadly ovate, obtuse, 3-4 mm long; lateral sepals deflexed, obliquely ovate, acute, c. 5 mm long. Petals simple, ovate-lanceolate, curved, acute, with an anterior basal auricle, as long as the median sepal and adherent to it. Lip tripartite; midlobe narrowly oblong, (4-) 6-7 mm long; side lobes spreading, linear, (3-) 4-6 mm long; spur with a tooth c. 1.5 mm tall, incurved, slightly inflated near the apex, then tapering, 15-20 mm long. Anther acute, c. 1.5 mm tall, canals strongly incurved, c. 0.5 mm long; stigmatic processes inªcurved, c. 0.5 mm long; central rostellum lobe triªangular, c. 1 mm long.
More
Terrestrial herb, geophyte, up to 0.41 m high; with globose root tubers. Leaves 2, radical, acuminate, up to 150 x 40 mm, mottles silver-grey. Inflorescence lax, racemose; flowers 8-25, resupinate, green. Sepals unequal; median sepal 4 mm long. Petals undivided, triangular, 4 mm long, acute. Lip 3-lobed, 6 mm long; spur 15-20 mm long with small tooth in mouth. Flowering time Apr.-July.
Slender, tuberous geophyte to 40 cm. Leaves few, mostly basal, spreading, elliptic, often mottled with grey. Flowers in a lax raceme, green, petals lanceolate, lip tripartite with spur 15-20 mm long, stigmas 0.5 mm long.
Lip 3-lobed almost to base; mid-lobe 5–6 mm long, side lobes spreading, 4 mm long; all lobes linear, c. 0.5 mm wide; spur 15–17 mm long, slender but slightly swollen in apical half, straight or slightly incurved.
Leaves 2–8, with 2 at the base (but not appressed to the ground), petiolate, the lamina 7.5–9.5 × 2.5–3 cm, ovate, the petiole 2.5–3.5 cm long; the remainder sheath-like stem leaves 15–18 mm long.
Terrestrial herb, up to 400 mm tall. Leaves 2 or 3, at base of stem, indistinctly mottled. Inflorescence lax, flowers numerous. Petals undivided; lip with 3 equal lobes. Flowers green.
Inflorescence 7–10 cm long, laxly up to c. 12-flowered; bracts 10–15 mm long, lanceolate, acute.
Basal leaves dark green, densely mottled on the upper surface with white or silvery-green.
Sepals c. 4 × 2 mm; ovate, dorsal erect, convex; lateral sepals reflexed, oblique.
Terrestrial herb 25–40 cm high with villous, ellipsoid tuber up to 25 mm long.
Petals c. 4 × 1 mm, triangular, acute, lying beside dorsal sepal.
Stigmatic arms very short; rostellum 3-lobed.
Ovary and pedicel arched, 15 mm long.
Flowers green, verysmall.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.33 - 0.4
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 1-3
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-12

Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Habenaria arenaria world distribution map, present in Mozambique, eSwatini, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:636855-1
WFO ID wfo-0000977150
COL ID 3J3MM
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Bonatea micrantha Habenaria arenaria Habenaria micrantha