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Sideroxylon lanuginosum ssp. oblongifolium (Nutt.) T.D. Penn.

Kingdom: Plantae Rank: Subspecies Parent: lanuginosum Status: Valid


Common Names:

  • CHITTAMWOOD - English, United States of America
  • GUM BUMELIA - English, United States of America
  • WOOLLY-BUCKTHORN - English, United States of America
  • GUM-ELASTIC - English, United States of America
  • COMA - English, United States of America

Morphological Description

Diagnosis: Shrub or small tree to 15 m or more tall, usually with spine-pointed branchlets; leaves alternate or bunched on spur branchlets, very short-petioled, simple; leaf blades oblanceolate to elliptic, entire, obtuse, stiff and leathery, thin to densely white to gray or tawny cobwebby pubescent beneath; flowers axillary, small, in umbel-like clusters; calyces cup-like, with 5 orbicular-ovate,
widely overlapping sepals; corollas slightly exceeding the calyces, yellowish white, with cylindrical tube and 5 orbicular-ovate main lobes overlapping and alternating with short spreadingones; calyces and corolla tubes densely pubescent; stamens 5, not exserted; staminodes 5, alternating with corolla lobes and nearly equaling the corolla lobes in length; pistil 1; ovary superior;
fruits obovoid to broadly ellipsoid or subglobose, usually purplish black, 7-12 mm long.


Notes: Woods, stream banks, hillsides, and rocky areas; e 1/2 of TX. May–Jul. [Bumelia lanuginosa (Michx.)Pers. var. oblongifolia (Nutt.) R.B. Clark, S. lanuginosum subsp. albicans (Sarg.) Kartesz & Gandhi] According to Tyrl et al. (1994), this species is a good bee-tree (in terms of honey production). Burlage (1968) reported that the fruits are edible but cause digestive disturbances and dizziness if eaten in quantity. Because of the apparant lack of consistent differences, we follow Jones et al. (1997) in including subsp. albicans within subsp. oblongifolium; Barker (1986b) also lumped var. albicans with var. oblongifolia. Clark (1942) separated the 2 (as varieties). (lanuginosum: woolly, downy; oblongifolium: oblong-leaved),