Otholobium glandulosum (L.) J.W.Grimes

  • Authority

    Grimes, J. E. 1990. A revision of the New World species of Psoraleeae (Leguminosae: Papilionoideae). Mem. New York Bot. Gard. 61: 1-114.

  • Family

    Fabaceae

  • Scientific Name

    Otholobium glandulosum (L.) J.W.Grimes

  • Description

    Species Description - Shrubs from 1 m to trees to 3 m (in cultivation), glandular throughout, glands sometimes elevated, often of two types, small golden and larger red-brown; young stems reddish, densely glandular and sparingly pubescent with short, black hairs, gray with age and becoming less glandular and glabrate, brachyblasts often persistent on old stems, their bracts resembling from a distance spinulose stipules. Stipules erect, narrowly to broadly triangular, 1-5 x 0.5-2 mm , glandular, sparingly pubescent, more so along margins, tardily deciduous or persistent but quickly withering. Leaves pinnately trifoliolate, rarely with a fourth leaflet inserted on leaf rachis; petiole 1.3-4.1 cm, densely glandular with golden to red-brown glands and sparingly pubescent with ascending hairs, round and ribbed to slightly canaliculate, the base enlarged and of slightly different color and texture and occasionally winged, jointed to stem; rachis 0.7-1.3 cm; petiolules 1.5-3 mm, darker green in color, less densely glandular, more densely pubescent than rachis or leaflets; leaflets lanceolate, rarely broadly so, 2.6-8.8 X 0.8-2.2 cm, narrowly acuminate at apex, attenuate at base, upper surface glabrate though margins commonly pubescent, lower surface sparingly white pubescent along veins, both surfaces densely dark-brown glandular. Inflorescence olongsite, with 10-25 nodes and (2-)3 flowers per node, rarely paniculate with a small branch at first node; peduncle 2.1-8.5 cm; rachis 4.3 to 16.5 cm, this elongating through fruiting, nodes crowded at inception, remote with age; bracts tardily deciduous, lanceolate to depressed-obovate, 1.5-4 X 2-3 mm, sometimes wider than long, glandular and pubescent with black hairs, elevated on very small leaf spurs; no bracteoles; pedicels 1.5-3 mm, densely black-pubescent with some interspersed white hairs. Flowers 9-9.5 mm; calyx glandular and uniformly short-pubescent, 4-6 mm long to upper tooth, 5-7 mm long to lower tooth, the tube 2-4 mm, upper four teeth triangular 1.5-3 x 1-1.5 mm, lower tooth lanceolate, 3-4 X 2 mm, the calyx in fruit becoming more campanulate, bony and less pubescent, each tooth with a median and two lateral veins; petals lilac to purple, white at base; banner elliptic to widely elliptic, 8-10 x 4-5.5 mm, the claw 2-3 mm, the blade emarginate, the auricles small and scarcely if at all internally callose; wings 8-9 x 2-3 mm, the claw 3-4 mm, the auricle 1-1.5 mm; keel petals 6-7 x 2-2.5 mm, the claw 3-3.5 mm; androecium 5-6 mm, anthers elliptic, 0.33 mm; gynoecium 4.5-6 mm, the ovary pubescent, style pubescent either only at base, or up to reflexed portion. Fruit unevenly triangularelliptic in profile, 5.5-7.5 x 2.5-3.5 mm, apiculate or with a very short, broadly attached beak, sparingly to moderately pubescent, more so at apex, sparingly glandular, about as long as calyx. Seed A.5-5 x 2.5-3 mm, red-brown.

  • Discussion

    Holotypus L I N N (IDC fiche, S. Savage, A catalogue of the Linnaean Herbarium, card 517: III, 4), photo F! Lotodes glandulosum (L.) Kuntze, Revis. gen. pi. 1: 194. 1891. Hoita glandulosa (L.) Rydb., N. Amer. H . 24: 8. 1929.

    Along rivers and ephemeral streams, at edge of moist thickets, 600- 1400 m , on the western foothills of the Andes in Chile from prov. Coquimbo south to prov. Valdivia. Cultivated in the U.S. and Uruguay as an ornamental. A collection (A. O. ?Brizer, handwriting illegible, GOET!) labelled "Cordillera von Curico, Valle del Peru," is uncorroborated by other collectors. Fl. X-V. Map, Fig. 13A.

  • Distribution

    Along rivers and ephemeral streams, at edge of moist thickets, 600- 1400 m , on the western foothills of the Andes in Chile from prov. Coquimbo south to prov. Valdivia. Cultivated in the U.S. and Uruguay as an ornamental.

    Chile South America|