Columnea arguta C.V.Morton

Species

Angiosperms > Lamiales > Gesneriaceae > Columnea

Characteristics

Woody based herbs, epiphytic; stems pendent, 1.5-3.0 mm in diam., red glandular hispid when young. Leaves of a pair equal, ovate lanceolate or lanceo-late, 1.6-3.1 cm long and 6-12 mm wide, acute to long acuminate, cuneate to rounded at the base, entire, above green or reddish, glabrous, beneath pale green or reddish, sparsely strigose especially on the margins, the hairs transparent or reddish, 4-5 celled, few glandular hairs, also 2-3 celled appressed hairs; petioles 1-3 mm long. Flowers solitary or paired; bracts to 1.5 mm long, red strigose; pedicels 5-15 mm long, red hispid; calyx lobes erect, lanceolate, 1.1-2.3 cm long, 3-7 toothed, the teeth to 7 mm long, yellowish green or green tinged with red, reddish hirsute; corollas scarlet or orange red with yellow running from the sinuses of the lobes, funnel shaped but strongly zygomorphic, 4.6-7.2 cm long, ca. 4 mm in diam. above the base, becoming ca. 10 mm in diam. at the throat, the lobes strongly unequal, the posterior pair connate, emarginate at the apex, 1.2-3.3 cm long, ca. 3.5 mm in diam. above the base, becoming 10 mm in diam. at the throat, the lobed portion of the corolla ca. 3.6 cm long, the anterior lobe 1.0-2.1 cm long, reflexed, the corolla externally reddish pilose, internally glandular at the base; filaments glabrous above, yellow, the anthers exserted; ovary sericeous, the style glandular, yellow, the stigma bilobed. Fruits not seen. Chromosomes 2n-18 (Fussell, 1958).
Life form perennial
Growth form herb
Growth support climber epiphyte
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-6
Soil humidity 3-5
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-9

Usage

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

Cultivation

Mode -
Germination duration (days) 30 - 120
Germination temperacture (C°) 22 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -7
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Columnea arguta world distribution map, present in Colombia and Panama

Identifiers

LSID urn:lsid:ipni.org:names:63510-2
WFO ID wfo-0000615433
COL ID XCH2
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Columnea arguta Columnea consimilis