Senna covesii (Coues' Cassia or Desert Senna; syn. Cassia covesii A.Gray), is a perennial subshrub in the family Fabaceae, native to the Mojave Desert in southeastern California, southern Nevada, and Arizona in the United States, and northern Baja California in Mexico. It is very common in Joshua Tree National Park, and is also found in the Sonoran Desert. It is found on desert plains and in sandy washes between 500-600 m altitude. Scientific classification or biological classification is how biologists group and categorize extinct and living species of organisms (as opposed to folk taxonomy). ... Divisions Land plants (embryophytes) Non-vascular plants (bryophytes) Marchantiophyta - liverworts Anthocerotophyta - hornworts Bryophyta - mosses Vascular plants (tracheophytes) Lycopodiophyta - clubmosses Equisetophyta - horsetails Pteridophyta - true ferns Psilotophyta - whisk ferns Ophioglossophyta - adderstongues Seed plants (spermatophytes) †Pteridospermatophyta - seed ferns Pinophyta - conifers Cycadophyta - cycads Ginkgophyta - ginkgo Gnetophyta - gnetae Magnoliophyta - flowering plants Adiantum pedatum (a fern... Classes Magnoliopsida- Dicots Liliopsida- Monocots The flowering plants (also called angiosperms) are a major group of land plants. ... Magnoliopsida is the botanical name for a class: this name is formed by replacing the termination -aceae in the name Magnoliaceae by the termination -opsida (Art 16 of the ICBN). ... Families Fabaceae (legumes) Quillajaceae Polygalaceae (milkwort family) Surianaceae The Fabales are an order of flowering plants, included in the rosid group of dicotyledons. ... Subfamilies Faboideae Caesalpinioideae Mimosoideae References GRIN-CA 2002-09-01 The name Fabaceae belongs to either of two families, depending on viewpoint. ... Genera Acrocarpus Arapatiella Arcoa Balsamocarpon Batesia Burkea Bussea Caesalpinia Campsiandra Cenostigma Cercidium Chidlowia Colvillea Conzattia Cordeauxia Delonix Dimorphandra Diptychandra Erythrophleum Gleditsia Gymnocladus Haematoxylum Hoffmannseggia Jacqueshuberia Lemuropisum Lophocarpinia Melanoxylum Moldenhawera Mora Moullava Orphanodendron Pachyelasma Parkinsonia Peltophorum Poeppigia Pomaria Pterogyne Pterolobium Recordoxylon Schizolobium Sclerolobium Stachyothyrsus Stahlia Stenodrepanum Stuhlmannia Sympetalandra Tachigali Tetrapterocarpon Vouacapoua... In biology, binomial nomenclature is the formal method of naming species. ... Asa Gray, Botanist Asa Gray (November 18, 1810 - January 30, 1888) is considered the most important American botanist of the 19th century. ... A Red Valerian, a perennial plant. ... A subshrub (Latin suffrutex) is a horticultural rather than strictly botanical category of woody perennial plant, distinguished from a shrub by variously its ground-hugging stems and lower height, with overwintering perennial woody growth typically less than 10-20 cm tall, or by being only weakly woody and/or only... Subfamilies Faboideae Caesalpinioideae Mimosoideae References GRIN-CA 2002-09-01 The name Fabaceae belongs to either of two families, depending on viewpoint. ... Mojave Desert The Mojave Desert (Mojave is used for the desert while Mohave is used for the native people) occupies a significant portion of southern California and smaller parts of southwestern Utah, southern Nevada, and northwestern Arizona, in the United States. ... Official language(s) English Capital Sacramento Largest city Los Angeles Area  - Total   - Width   - Length   - % water  - Latitude  - Longitude Ranked 3rd 158,302 sq mi  410,000 km² 250 miles  402. ... Official language(s) None Capital Carson City Largest city Las Vegas Area  - Total  - Width  - Length  - % water  - Latitude  - Longitude Ranked 7th 286,367 km² 519 km 788 km 0. ... Official language(s) None Capital Phoenix Largest city Phoenix Area  - Total   - Width   - Length   - % water  - Latitude  - Longitude Ranked 6th 113,998 sq mi  295,254 km² 310 miles  500 km 400 miles  645 km 0. ... Baja California is the northernmost state of Mexico. ... A Joshua tree silhouetted by a rock Joshua Tree National Park is located in south-eastern California. ... Sonoran Desert wildlife Mountains in the Sonoran Desert The Sonoran Desert (sometimes also called Gila Desert after Gila River) is a North American desert which straddles part of the U.S.-Mexico border and covers large parts of the U.S. states of Arizona and California and the Mexican state...

It grows to 30-60 cm tall, and is leafless most of the year. The leaves are pinnate, 3-7 cm long, with 2-3 pairs of leaflets (no terminal leaflet), the leaflets elliptical, 1-2.5 cm long. The flowers are yellow in color, with five rounded petals about 12 mm long. In botany, a leaf is an above-ground plant organ specialized for photosynthesis. ... Clivia miniata bears bright orange flowers. ...

The plant is often planted by landscapers and as part of roadside wildflower programs, and is visited by caterpillars, Carpenter bees, and bumblebees. Five wildflower species A wildflower is a flower that grows wild, meaning it was not intentionally seeded or planted. ... This article is about insect larvae. ... Genera Many Carpenter bees (Xylocopinae subfamily) are important pollinators, especially of open-faced flowers, though they are also known to rob nectar by boring holes in the sides of flowers with deep corollas (thus not accomplishing pollination). ... Species see text A bumblebee in flight The bumblebee is a flying insect of the genus Bombus in the family Apidae. ...

References

• Jepson Flora Project: Senna covesii
• Mojave Desert Wildflowers, Jon Mark Stewart, 1998, pg. 73
• Pima Community College, Desert Ecology of Tucson, AZ - [1]