Pectocarya heterocarpa (I.M. Johnston) I.M. Johnston  
Family: Boraginaceae
chuckwalla combseed
[Pectocarya penicillata var. heterocarpa I.M. Johnston]
Pectocarya heterocarpa image
Max Licher  
Plant: Annual forb to 10 cm; stems prostrate and spreading, strigose Leaves: herbage bristly, generally alternate, generally 0.5-4 cm, ± linear INFLORESCENCE: cymes, pedicel in fruit 1.3-2.8 mm, partly fused to 1 nutlet Flowers: basal cleistogamous; in fruit lower 3 sepals unequal, < others; corolla 0.8-3 mm, white; style attached to receptacle, unbranched, generally persistent, stigma 1, head-like Fruit: Fruit: nutlet 4, 1.2-3 mm, oblong to oblanceolate; basal nutlets 2-4 per flower, not paired, reflexed, 1 unmargined, others narrowly entire- to ± dentate-margined; cauline nutlets with paired divergent appendages, curved, margins ± entire (and narrowly to widely membranous) to dentate Misc: Washes, roadsides, openings in creosote-bush scrub, Joshua-tree woodland; < 1400 m.; Feb-May
Kearny and Peebles 1979
Duration: Annual Nativity: Native Lifeform: Forb/Herb General: Stems prostrate to procumbent, several from vase, 5-25 cm long, stigulose with finer hairs than most species. Leaves: Linear to narrowly oblanceolate, .5-1.2 mm wide, 5-25 mm long, stiff hairs. Flowers: Small, about 2 mm long, sepals elliptic-lanceolate or linear lanceolate, 1.5-2 mm long at anthesis, corolla white. Fruits: 2 broadly margined nutlets, margins lacerate-toothed and deltoid teeth tipped with uncinate hairs, other 2 nutlets unmargined and somewhat reflexed, tuft of uncinate hairs distally. Ecology: Found on arid, gravelly, sandy slopes, in valleys and washes and in disturbed areas below 5,000 ft (1524 m); flowers February-May. Distribution: AZ, sw UT, se CA; south to n MEX (Sonora). Notes: Distinguished from other Pectocarya spp. by the nutlets which are unequal in size on this species. Two of the nutlets are ascending and have conspicuous margins which can be entire or toothed; the other two nutlets are recurved and lack the conspicuous margin. Also this species has strongly asymmetric calyxes. Also look for the fruits near the base of the plant which are apparently from cleistogamous (self-fertilizing) flowers, as all four of the nutlets are recurved and lack the conspicuous margins. Ethnobotany: Unknown Etymology: Pectocarya from the Greek pectos, combed and karua, nut, while heterocarpa is from Greek heteros, different and karphos, a chip of wood, splinter, nail. Synonyms: Pectocarya penicillata var. heterocarpa Editor: SBuckley, 2010
Pectocarya heterocarpa image
Max Licher  
Pectocarya heterocarpa image
Max Licher  
Pectocarya heterocarpa image
Liz Makings  
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Patrick Alexander  
Pectocarya heterocarpa image
Patrick Alexander  
Pectocarya heterocarpa image
Patrick Alexander  
Pectocarya heterocarpa image
Sue Carnahan  
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image
Pectocarya heterocarpa image