The tertiary and quaternary trophotagma enrichment axes end in a pure distichous
pistillate spike (Fig.
Norris have distichous
branching, while our specimen has radially distributed branchlets.
Description: Perennial herbs with distichous
leaves, plant form clump, height less than 2 m (about 176 cm tall), has green stilt root, 7-8 plants per clump, 8-9 pairs of leaves per plant.
Leaves alternate, spiral or distichous
; petiolate or subsessile, presence of pulvinus; extrafloral nectaries absent or present, convex, sessile or stipitate, located between the pairs of leaflets or on the petiole; leaflets 1-many pairs, papyraceous to coriaceous, elliptic to oblong, lanceolate to obovate, apex acuminate, rounded to mucronate, base oblique.
Leaves 3 to 15 per plant, leaf sheaths reddish, glabrous, conduplicate, equitant and distichous
, subcoriaceous to chartaceous, elongate, with about 50 distinct nerves, 5-9 cm long x 0.8-10 cm wide; base of leaf blades gradually passing into the petiole, petioles slender, 1.5-10 cm long, glabrous, narrowled toward the apex; leaf blades subcoriaceous, lanceolate, 5-13 cm long x 1-1.3 cm wide, glabrous on both sides, sparsely verrucose along the veins on the lower surface, with 12-15 secondary veins, the base attenuate, the apex long-acuminate, acumen ca.
The leaves are simple, entire, alternate and distichous
, with parallel venation, petiolate lanceolate to broadly ovate.
In the laboratory, from each quadrate, leaves were removed from 15 shoots in distichous
order of insertion and separated into the various categories defined by Giraud .
The oldest groups of this subtribe with a distichous
Basal leaves distichous
, up 55 cm long, (4-)5-pinnatisect, ovate, thick, divisions often whorled, lobes linear to linear-lanceolate, mucronulate.
The leaves typically are distichous
and may be 3-25 cm long and 2-8 mm wide with a basally pilose adaxial surface and a glabrous to pubescent abaxial surface (Freckmann & Lelong 2003).
The leaves may be small to medium sized, simple, alternate, spiral or distichous
, broadly elliptic and pubescent.
The leaves are produced in a distichous
phyllotaxis, but when the meristem is transformed to a reproductive meristem, its first lateral structures (branches) are produced in a spiral; this shift has been investigated extensively in maize.