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Axyris
Family:
Amaranthaceae
Flora of North America
Resources
Leila M. Shultz in Flora of North America (vol. 4)
Herbs,
annual, monoecious, covered with rusty-colored, stellate, and whitish simple trichomes.
Stems
ascending, not jointed or armed, slender.
Leaves
alternate, petiolate; blade ovate-lanceolate to narrowly lanceolate, base tapered, margins entire, plane or revolute, apex acute to acuminate.
Inflorescences
glomerules, cymes, or flowers solitary.
Staminate flowers
in terminal glomerules or at end of pistillate cymes.
Pistillate flowers
solitary in upper leaf axils or forming cymes commingled with staminate flowers.
Flowers
unisexual; staminate with perianth segments 3-5, stamens 2-5; pistillate with bracteoles 2, perianth segments 3-4, stigmas 2, filiform.
Fruiting structures
persistent, accrescent perianth surrounding utricle; utricles winged, obovate to cuneate, laterally compressed; pericarp adherent.
Seeds
vertical, ovoid; seed coat grayish, granular; embryo horseshoe-shaped; perisperm copious.
x
= 9.
Species within inventory project:
Arizona Flora
Axyris amaranthoides