Lotus goetzei Harms

Species

Angiosperms > Fabales > Fabaceae > Lotus

Characteristics

Perennial; rootstock massive, woody; stems prostrate, ascending or bushy, up to 3 mm. in diameter, and up to 1(–2) m. in height, the epidermis a dark purple or blackish-red when dry, often obscured by dense white or slightly fulvous spreading hairs up to 1 mm. long; internodes on the side branches often very short (under 5 mm.).. Leaves very variable in size, on old stunted shoots ± 4 mm. overall, including a rhachis of 1 mm., on young vigorous shoots up to 27 mm., including a rhachis of 6 mm.; rhachis nearly always less than half as long as basal leaflets, these usually quite different in shape from the apical leaflets, usually asymmetrically oblong with the midrib running diagonally from corner to corner, basal angle commonly 70°–80°; apical leaflets cuneate-obovate, 1·5–2·5 times as long as wide; indumentum on leaves variable, but ± spreading hairs, up to ± 1 mm. long, are usually frequent, at least on the margins and lower midrib, sometimes very sparse on the lamina.. Umbels 1–6-flowered; peduncle pubescent, 0·5–4 cm., rarely up to 8 cm. long.. Bract nearly always 3-foliolate, the parts ± oblong; pedicels densely pubescent, 1–1·5 mm. long.. Calyx reddish, ± pubescent with spreading hairs, the tube ± 2 mm. long below the insertion of the stamens, ± 3 mm. above; teeth triangular-acuminate, ± 3 mm. long.. Corolla white, with purplish, red or pink markings; standard emarginate, ± 9 by 5 mm.; wings ± 11 mm. long including a claw of 4 mm.. Filament-sheath ± 5 mm. long, sometimes papillose near the base, free parts 2 and 3 mm. long.. Ovary ± 7 mm. long, ± 26-ovulate; style slightly curved upwards, ± 4 mm. long.. Fruit up to 2·5 cm. long but often shorter, ± 16-or fewer seeded.. Fig. 146/1–12, p. 1046.
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Leaves very variable in size, only the leaf base and rhachis persisting on older branches; basal leaflets asymmetrical, up to 15 × 8 mm, rhombic with the basal angle usually 70–90º; lateral and apical leaflets up to 18 × 7 mm, the apical one a little longer than the lateral ones, cuneate-obovate; all leaflets with margins revolute, pilose on upper and lower surfaces with spreading hairs up to 1.5(3) mm long, or subglabrous but with some hairs on the midrib and margins, subcoriaceous, densely marked with purple dots on upper surface and purple dots or wavy lines beneath; rhachis 1.5–2.5(?6) mm long, usually less than half the length of the basal leaflets; stipular glands purple, minute.
Corolla white or cream, the standard streaked with red and, at least when dry, the tip of the keel reddish or purplish; standard 8.5–10 × 4–5.5 mm, slightly violin-shaped, wedge-shaped at the base, retuse; wings 8.5–9 mm long including the 3 mm long claw, the blade oblong, laterally pouched, auriculate, the auricles of both wings often adhering to each other; keel c. 10 mm long including claws 3–3.5 mm long, curved, pointed.
Calyx reddish, with ± sparse, spreading hairs up to 1.5 mm long; hypanthium c. 1.5 mm long; calyx tube c. 2 mm above the insertion of the stamens; calyx lobes 2.5–3.5 × 1.2–1.5 mm, triangular-acuminate.
Stems erect, ascending or prostrate and up to 1(2) m long and up to 3 mm in diameter, woody below, pilose with ± dense white spreading hairs up to 1 mm long, the epidermis dark purple when dry.
Filament sheath c. 6 mm long, often papillose near the base; free parts of the shorter filaments c. 2 mm long, those of the longer filaments c. 3 mm long.
Umbels 2–5-flowered; peduncle 0.5–4 cm long, pubescent; foliage leaf on the peduncle usually 3-foliolate; pedicels 1–2 mm long, pubescent.
Ovary c. 7 mm long, glabrous, c. 26-ovulate; style 4 mm long, slightly curved upwards.
Subshrub up to 50 cm tall from a woody rootstock.
Pod brownish-red, up to 25 × 2.2 mm, terete.
Seeds 16 or less, c. 1.1 mm long, ovoid.
Life form perennial
Growth form
Growth support -
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer rhizobia
Photosynthetic pathway c3

Environment

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

Usage

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

Cultivation

Mode -
Germination duration (days) 14 - 30
Germination temperacture (C°) 12 - 18
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Leaf

Lotus goetzei leaf picture by susan brown (cc-by-sa)
Lotus goetzei leaf picture by susan brown (cc-by-sa)

Flower

Lotus goetzei flower picture by susan brown (cc-by-sa)
Lotus goetzei flower picture by susan brown (cc-by-sa)
Lotus goetzei flower picture by susan brown (cc-by-sa)

Distribution

Lotus goetzei world distribution map, present in Ethiopia, Kenya, Malawi, Tanzania, United Republic of, and Uganda

Identifiers

LSID urn:lsid:ipni.org:names:503661-1
WFO ID wfo-0000212202
COL ID 3W839
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Lotus oxyphyllus Lotus nyikensis Lotus oehleri Lotus jaegeri Lotus kilimanjaricus Lotus goetzei