Определитель растений Средней Азии · 6-tom, 156-bet(vol. 6, p. 156)
Seksiya · Section
Astragalus sect. Caprini
Tavsif · Description
Podlech & Zarre (2013), vol. I, p. 545Plants 5−30(−40) cm tall, acaulescent or rarely shortly caulescent, mostly rather densely covered with white or in dry state reddish, spreading, somewhat rigid hairs 2−4(−6) mm. Rootstock long, up to 10 mm thick, with a pluricipital root-crown, with mostly short, subterranean branches, in upper part covered with remnants of old stipules. Stems mostly absent or very short, rarely up to 10 cm (mostly in sandy areas), loosely to densely hairy. Stipules whitish-membranous, with distinct longitudinal nerves, 10−27 mm, the lower ones ovate to oblong, obtuse, the upper ones narrowly triangular, long acuminate, all adnate to the petiole for 1−3 mm, ciliate at the margins, often densely hairy, especially toward the tip. Leaves 10−40 cm; petiole 3−15 cm, like the rachis densely covered with spreading hairs sometimes up to 6 mm, rarely sparsely to loosely hairy. Leaflets in 10−17(−29) pairs, narrowly ovate to narrowly obovate, 10−33(−38) × 4−12(−19) mm, rounded or feebly retuse, more rarely subacuminate, on upper side sparsely, on underside more densely or on both sides loosely to densely covered with appressed to ascending hairs. Peduncles (0.2−)1−4 cm, glabrous or with spreading hairs. Racemes 2−7(−9)-flowered. Bracts membranous, 4−30 mm, linear-acuminate, ciliate. Pedicels 1−6 mm, glabrous or hairy. Calyx (10−)14−20 mm, tubular, straw-colored to greenish, glabrous or loosely to densely furnished with spreading hairs; teeth slightly unequal, narrowly triangular, 6−12 mm. Petals yellow, glabrous or partly hairy. Standard 22−28 mm; blade 6−11 mm wide, elliptic to obovate, emarginate, at the base ± gradually narrowed. Wings (15−)17−23 mm; blades narrowly oblong, rounded to feebly retuse, 9−13 × 2−4 mm; auricle 1−1.5 mm, claw 8−11 mm. Keel 14−21 mm; blades oblong to elliptic, nearly straight, obtuse to subacute, 7−10 × 3−5 mm; auricle indistinct, claw 7−10 mm. Stamen-tube obliquely cut at the mouth. Ovary sessile to subsessile, densely appressed hairy; style hairy at the base or in lower half. Legumes sessile, obliquely ellipsoid to oblong, with curved ventral line and nearly straight dorsal line, 10−15 mm long, 5−10 mm high and (5−)7−9 mm wide, keeled ventrally, flat or shallowly grooved dorsally, triangular in cross-section, with a nearly straight beak 2−5 mm, incompletely bilocular; valves vaulted, thin, straw-colored to pale brownish, sometimes reddish brown suffused, with long spreading hairs, very rarely glabrous. Seeds 3−4 × 2−2.5 mm, red brown. Three subspecies: 1 Standard and wings at least partially appressed hairy ....................... subsp. pubiflorus (DC.) Soó – All petals glabrous ..................................................................................................................... 2 2 Plants sparsely hairy; stipules 15−27 mm, ciliate at the margins, otherwise glabrous; leaves up to 40 cm; peduncles and pedicels glabrous; tube of calyx glabrous or very parsely hairy ............................................................................................. subsp. transsilvanicus (Schur) Nyár. – Plants mostly rather densely to densely hairy; stipules 10−15(−20) mm, at least toward the tip densely hairy; leaves up to 25 cm; peduncles and pedicels hairy; tube of calyx loosely to densely hairy ....................................................................................................... subsp. exscapus
