Epilobium hirtigerum A.Cunn.

Species

Angiosperms > Myrtales > Onagraceae > Epilobium

Characteristics

Robust, erect, clumped perennial herb, 15-100 cm, the underground parts not scaly; plants densely strigulose, the stems pubescent all around. Lowermost leaves opposite, the rest alternate, densely strigulose, especially below and along the veins, nerves evident, narrowly lanceolate, 0.6-3 by 0.2-0.5 cm, coarsely serrate, subsessile. Inflorescence erect. Flowers erect, borne in the axils of upper leaves. Floral tube c. 1 mm across, c. 1 mm deep. Sepals 3-5.5 by 0.8-1.6 mm. Petals obovate, 3-5 by 2-3.2 mm, white or very pale pink, the notch c. 1 mm deep. Anthers 0.7-1 mm long; filaments of the longer stamens 2-2.8 mm, those of the shorter 1-1.8 mm. Style 1-3 mm. Stigma clavate, 1.5-2.7 mm high, 1-1.5 mm thick, surrounded by the anthers of anthesis. Capsule 3-5(-6) cm long, on a pedicel 0-2 cm. Seeds 0.9-1.2 mm long, 0.35-0.45 mm thick, finely papillose, brown, not beaked, obovoid, blunt at both ends, the coma 5-8 mm long, white. Gametic chromosome number, n = 18.
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Robust hirsute perennial 20–140 cm high, with numerous basal leafy stolons. Stems with dense, long, spreading hairs and usually with erect and glandular hairs; stem bases exfoliating and rather woody. Leaves usually alternate, linear or very narrowly lanceolate, 1.5–6 cm long, with distinct, spaced teeth sometimes absent from the lower parts, sometimes undulate. Flowers with a conspicuous ring of long hairs inside the hypanthium. Petals 3–8 mm long, white or purplish pink. Capsule 3.5–6 cm long, densely pubescent with a mixture of long and spreading, close and glandular hairs; pedicel to 1.5 cm long. Seeds obovoid, 0.9–1.1 mm long, comose.
Stock woody; stems several, stiff, erect from arcuate base, clad in villous hairs, simple or branched; branches ± virgate, hoary with mingled long and short hairs. Lower lvs subopp., rest alt., ± crowded, ascending, sessile or very nearly so. Lamina narrow-lanceolate, 25-50-(65) × 3-8-(10) mm., subcoriac., densely (sts sparsely) hairy, becoming glab.; margins ± entire in lower part, coarsely denticulate towards apex. Fls ± 6·5 mm. diam.; calyx-lobes lanceolate, villous; petals purplish, a little > calyx. Capsules 50-60 mm. or more long, rather stout, densely villous; peduncles 5-12 mm. long, ± pilose. Seeds densely papillose.
Robust herb, 20-140 cm tall, usually not branched, with numerous vigorous leafy stolons from base, hirsute, densely covered everywhere with long spreading hairs, and often greyish, usually with a layer of shorter erect hairs and also with glandular hairs in infl. Lvs linear to very narrowly lanceolate, 1.5-6 × 0.2-0.8 cm. Floral tube 0.5-0.9 mm deep, with a conspicuous ring of long white hairs inside. Petals white or rose-purple, 2.8-8 × 1.8-5.2 mm, often < sepals. Capsule densely hairy, 3.5-6 cm long; fruiting pedicel 0.6-1.5 cm long.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.2 - 1.4
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Moist places, grasslands; in E. Java the only locality is near the single small well on the otherwise dry and barren extinct volcanic cone of Mt Widodaren on Mt Tengger caldera, at 2100 m. In Lombok in Casuarina forest; in Timor in Eucalypt savannah; 1800-2200 m. Fl. Oct.-Jan.
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Found in moist and often weedy places.
Light -
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Hardiness (USDA) 8-11

Usage

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

Cultivation

Mode -
Germination duration (days) 14 - 30
Germination temperacture (C°) 10 - 15
Germination luminosity light
Germination treatment -
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Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Epilobium hirtigerum unspecified picture

Distribution

Epilobium hirtigerum world distribution map, present in Argentina, Australia, Brazil, Indonesia, New Zealand, Timor-Leste, Uruguay, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:611920-1
WFO ID wfo-0000669203
COL ID 6FSZ5
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Epilobium arechavaletae Epilobium brasiliense Epilobium hirtigerum Epilobium junceum var. hirtigerum Epilobium junceum var. hirtigerum