Atriplex lentiformis |
Atriplex linearis |
|
---|---|---|
big saltbrush, big saltbush, quail bush |
slenderleaf saltbush, thinleaf fourwing saltbush |
|
Habit | Shrubs, dioecious or less commonly monoecious, mainly 10–25(–35) dm, as broad or broader, unarmed or rarely so; branchlets terete, commonly puberulent. | Shrubs dioecious, erect, mainly 10–25 dm; branchlets slender, terete. |
Leaves | persistent, alternate, petiolate; blade gray-green, deltate to rhombic, ovate, or oblong-elliptic, 5–50 × 5–50 mm, base truncate to subhastate, margin entire to repand or subhastately lobed, apex rounded to obtuse, scurfy. |
sessile; blade narrowly linear-elliptic, 10–50 × 2–3 mm, firm, revolute, often acute apically. |
Staminate flowers | yellow, in clusters 1–2 mm wide, borne in panicles 0.5–5 dm. |
in glomerules borne in slender interrupted mostly paniculate spikes. |
Pistillate flowers | with less complex panicles. |
paniculate or in few-flowered axillary glomerules. |
Seeds | brown, 0.8–1.6 mm wide. |
|
Fruiting | bracteoles sessile, orbiculate to oval, greatly compressed, mainly 3–4.5 mm and wide, crenulate, apex rounded. |
bracteoles sessile or subsessile, lanceolate to ovate, 4–6 mm, about as wide, each bract with a pair of thin wings 3 mm broad or less, irregularly dentate or laciniate, free tips of bracts much exceeding the wings. |
2n | = 18. |
= 18. |
Atriplex lentiformis |
Atriplex linearis |
|
Phenology | Flowering spring–fall. | Flowering spring–fall. |
Habitat | Saline to essentially non-saline drainages, stream and canal banks, roadsides, warm desert shrub, saltbush, and riparian communities | Saline deserts, with shadscale, Canotia, Yucca, Opuntia, Rhus, and Eriogonum |
Elevation | 70-1000 m (200-3300 ft) | 0-800 m (0-2600 ft) |
Distribution |
AZ; CA; NV; UT; Mexico
|
AZ; CA; nw Mexico (Baja California, Sonora)
|
Discussion | Materials of big saltbush from the coastal and near coastal regions of California have somewhat broader, merely ovate, rounded leaves, and they have been regarded either at species level as Atriplex breweri S. Watson or at either varietal or subspecific level (see synonymy). The plants intergrade completely in interior situations with typical A. lentiformis, and their recognition at taxonomic level seems superfluous. C. A. Hanson (1962) noted the existence of putative hybrids between A. lentiformis and the herbaceous species A. leucophylla and A. davidsonii. Putative hybrids are also known between this species and A. canescens. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Specimens of Atriplex canescens var. macilenta resemble A. linearis. The taxa have been placed together by some previous workers. Nevertheless, the stems of A. linearis are consistently more slender, the leaves proportionally narrower, and the bracts, though smaller, more closely simulate those of A. canescens. Its diploid nature signals a different evolutionary pathway than that for most of A. canescens, considered broadly. Narrow leaves occur within A. canescens, in the broad sense, sometimes with geographic correlation, sometimes not. (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Source | FNA vol. 4, p. 377. | FNA vol. 4, p. 381. |
Parent taxa | Chenopodiaceae > Atriplex > subg. Pterochiton | Chenopodiaceae > Atriplex > subg. Pterochiton |
Sibling taxa | ||
Synonyms | Obione lentiformis, A. breweri, A. lentiformis subsp. breweri, A. lentiformis var. breweri | A. canescens subsp. linearis, A. canescens var. linearis |
Name authority | (Torrey) S. Watson: Proc. Amer. Acad. Arts 9: 118. (1874) | S. Watson: Proc. Amer. Acad. Arts 24: 72. (1889) |
Web links |