WorldFloraDB - Oenothera affinis

Characteristics

Annual, or possibly biennial, taprooted herb. Stems < 50 cm tall, branched, with dense glandular and white eglandular pilose hairs. Rosette lvs densely hairy, soon dying. Cauline lvs with short indistinct petioles; lamina 4-11 × 0.7-1.5 cm, lanceolate or linear-lanceolate, entire or remotely denticulate, densely clothed in short, glandular hairs, and with scattered long white, patent, eglandular hairs; base attenuate; apex mucronate. Fls distant along stem. Floral tube 8-9 cm long, very slender, with hairs as on lvs. Buds lanceolate, erect. Sepals 2-3.5 cm long, white-pilose; apices mucronate, divergent. Petals c. 3 cm long, broad-obovate, yellow. Style exserted by c. 2 cm. Capsule c. 2 cm long, ± clavate, ribbed, with hairs as on lvs. Seeds 1.5-2 mm long, ± ellipsoid.

More

Erect annual herb to c. 1.5 m high. Stems simple or branched, densely villous and glandular-pubescent. Leaves cauline, narrowly lanceolate, to 15 cm long, often c. 5 cm, usually less than 1 cm wide, sparsely serrate, usually tapering to the base and long-tapering to the acute apex. Flowers in upper axils. Hypanthium slender, 8–10 cm or more long. Sepals 2–3.5 cm long, often failing to separate. Petals usually 2–4 cm long, yellow, ageing reddish. Capsule somewhat clavate, usually 2–4 cm long, 3–4 mm wide, villous.

Annual herb, 0.4-1.5 m high, densely to sparsely long-villous and densely glandular-pubescent. Stems erect. Leaves sessile; blade cultrate to narrowly ovate, 50-150 x 5-15 mm, margins shallowly toothed. Flowers: up to 70 mm in diameter; floral tube 80-110(-130) mm long; sepals 20-35 mm long; petals 20-40 mm long, yellow; Oct. Fruit cylindrical, 30-40 mm long.

Erect annual herb, 0.4-1.5 m high, entirely covered with soft hairs. Leaves narrowly elliptic. Capsule cylindrical, 30-40 mm long. Flowers up to 70 mm in diameter; floral tube 80-110(-130) mm long; petals 20-40 mm long; yellow.

A herb.

Life form	annual
Growth form	herb
Growth support	free-standing
Foliage retention	deciduous
Sexuality	hermaphrodite
Pollination	-
Spread	-
Mature width (meter)	-
Mature height (meter)	0.4 - 1.5
Root system	tap-root
Rooting depth (meter)	-
Root diameter (meter)	-
Flower color
Blooming months	-
Fruit color	-
Fruiting months	-
Nitrogen fixer	-
Photosynthetic pathway	-

Environment

It is a subtropical plant.

Light	-
Soil humidity
Soil texture	-
Soil acidity	-
Soil nutriment	-
Hardiness (USDA)

Usage

Uses	environmental use medicinal
Edible	flowers seeds
Therapeutic use	-
Human toxicity	-
Animal toxicity	-

Cultivation

Mode	-
Germination duration (days)	15 - 30
Germination temperacture (C°)	18 - 21
Germination luminosity	light
Germination treatment	-
Minimum temperature (C°)	-
Optimum temperature (C°)	-
Size	-
Vigor	-
Productivity	-