EcoFlora - Atriplex

Atriplex
Family: Amaranthaceae	FNA Gleason & Cronquist Resources Stanley L. Welsh in Flora of North America (vol. 4) Herbs or shrubs, annual or perennial, monoecious or dioecious, often with bladderlike hairs that collapse to form silvery or scurfy (mealy) vesture, less often with elongate trichomes. Leaves persistent or tardily deciduous, alternate, partially opposite, or opposite, sessile or petiolate; blade entire, serrate, or lobed, with venation either of Kranz-type or normal dicotyledonous type, axillary buds inconspicuous or lacking. Inflorescences axillary or terminal; flowers borne in axillary clusters or glomerules, or in terminal spikes or spicate panicles. Staminate flowers with 3-5-parted calyx, ebracteate; stamens 3-5. Pistillate flowers lacking perianth, pistil naked, or in few species with (1-)3-5-lobed perianth, commonly enclosed within pair of foliaceous bracteoles; stigmas 2. Fruiting bracteoles enlarged in fruit, of various shapes and variously connate or not, thickened, and appendaged; pericarp free, tightly enclosed in the fruiting bracteoles. Seeds flattened, mainly vertical; radicle inferior, lateral, or superior. x = 9. Many species of Atriplex are halophytic, others occupy soils low in dissolved particulates. Prior to the 1900s, the genus Suckleya was treated within Atriplex, but its obcompressed fruiting bracteoles are quite unlike anything in Atriplex, and the plants were recognized as a distinct genus. Vascular plants of NE US and adjacent Canada Monoecious; staminate fls with 3-5 sep and as many stamens; pistillate fls all or mostly enclosed individually by 2 broad bracteoles, without perianth except in no. 2 [Atriplex arenaria Nutt.]; ovary wall very thin; styles 2, filiform; embryo annular, the radicle variously inferior (near the base, and directed downward or horizontally) to median (lateral, directed upwards) or superior (near the summit, and directed upwards); annual (incl. all our spp.) or perennial herbs or shrubs; fls minute, sessile or short-pedicellate in glomerules or borne singly in the axils or in terminal spikes or panicles; lvs usually opposite below and alternate above, ±mealy at least when young, sometimes later green and glabrate. Spp. 3-6 form a morphologically confluent, mostly self-pollinated polyploid series, whose members are sharply distinct at some but not all points of contact. 100+, widespread. Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp. ©The New York Botanical Garden. All rights reserved. Used by permission.
Species within checklist: FLC - Field Botany (Bio 382) - Week 1 - Summer 2025 \|\| << 1 - 50 taxa >> Atriplex abata Map not Available Atriplex acadiensis Map not Available Atriplex acanthocarpa Map not Available Atriplex acutibractea Map not Available Atriplex amboensis Map not Available Atriplex ameghinoi Media not available Map not Available Atriplex amnicola Map not Available Atriplex aptera Map not Available Atriplex arenaria Map not Available Atriplex argentea Map not Available Atriplex asplundii Map not Available Atriplex asterocarpa Map not Available Atriplex atacamensis Media not available Map not Available Atriplex aucheri Media not available Map not Available Atriplex australasica Media not available Map not Available Atriplex barclayana Map not Available Atriplex bonnevillensis Map not Available Atriplex bracteosa Map not Available Atriplex brenanii Media not available Map not Available Atriplex bunburyana Map not Available Atriplex californica Map not Available Atriplex calotheca Map not Available Atriplex cana Map not Available Atriplex canescens Map not Available Atriplex caput-medusae Map not Available Atriplex carnosa Map not Available Atriplex centralasiatica Map not Available Atriplex chapinii Media not available Map not Available Atriplex chenopodioides Map not Available Atriplex cinerea Map not Available Atriplex colerei Media not available Map not Available Atriplex confertifolia Map not Available Atriplex congolensis Media not available Map not Available Atriplex coquimbana Media not available Map not Available Atriplex cordifolia Media not available Map not Available Atriplex cordulata Map not Available Atriplex coriacea Media not available Map not Available Atriplex cornuta Map not Available Atriplex coronata Map not Available Atriplex corrugata Map not Available Atriplex coulteri Map not Available Atriplex crassifolia Map not Available Atriplex crassipes Media not available Map not Available Atriplex cristata Map not Available Atriplex cuneata Map not Available Atriplex decumbens Map not Available Atriplex depressa Map not Available Atriplex dimorphostegia Media not available Map not Available Atriplex dioica Map not Available Atriplex domingensis Map not Available