| Euphorbia aaron-rossii | |
|---|---|
 | |
| Flower | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Malpighiales |
| Family: | Euphorbiaceae |
| Genus: | Euphorbia |
| Species: | E. aaron-rossii |
| Binomial name | |
| Euphorbia aaron-rossii | |
Euphorbia aaron-rossii, also known as the Marble Canyon spurge, is a perennial, herbaceous plant species of Euphorbia native to Arizona. [1] It's most closely related to E. strictior and E. wrightii , but needs more study. [2]
Plants are suffrutescent with densely clustered, erect, wiry stems, including many dead ones persisting from past season. 2.5–4.5 cm tall and width being about the same, arising from a woody caudex surmounting a thick taproot. Herbage are ascending, piloss, pubescent, becoming sparsely struggles to glabrous with time and age. Stems are apparently annual (with new growth originating from the caudex), green, longitudinally striate, erect, monopodially branched at vegetative lower nodes, the internodes exceeding the leaves, the floral upper nodes sympodially branched with the main axis terminating in a cyanthium and a lateral branch becoming the leader. Leaves are alternate, with the length of the stipules minute glands being 0.1–0.25 mm long or occasionally obsolete. The petiole is short, being 0.2-2.2 mm long, soon becoming reflexed, usually a pale green or yellowish green. The blade is entire, symmetrical at base being 1–3.2 cm long varying in shape but the lower ones are usually broader and shorter, ovate to lanceolate. [3] taminate flowers 20–25. Pistillate flowers: ovary strigose; styles 1–1.3 mm, 2-fid at apex. Capsules subglobose, 2–3 × 4 mm, sparsely strigose; columella 2–3 mm. Seeds gray-green to gray-brown, globose-ovoid, 1.8–2.2 × 1.2–1.6 mm, longitudinally pitted; caruncle absent. [2]
This plant flowers and fruits in spring-fall. They are native to sandy soils and dunes, occasionally rocky slopes, riparian areas; of conservation concern; 600–1300 m; Ariz. [2]
Euphorbia is a very large and diverse genus of flowering plants, commonly called spurge, in the family Euphorbiaceae. "Euphorbia" is sometimes used in ordinary English to collectively refer to all members of Euphorbiaceae, not just to members of the genus.
Euphorbia esula, commonly known as green spurge or leafy spurge, is a species of spurge native to central and southern Europe, and eastward through most of Asia north of the Himalaya to Korea and eastern Siberia. It can also be found in some parts of Alaska.
Euphorbia heterophylla, also known under the common names of Mexican fireplant, painted euphorbia, Japanese poinsettia, paintedleaf, painted spurge and milkweed, is a plant belonging to the Euphorbiaceae or spurge family.
Euphorbia albomarginata, whitemargin sandmat or rattlesnake weed, is a small low-growing perennial, in the spurge family native to desert, chaparral, and grassland habitats of southwestern North America, from southern and central California to Northern Mexico and Louisiana.
Rudbeckia fulgida, the orange coneflower or perennial coneflower, is a species of flowering plant in the family Asteraceae, native to eastern North America.
Euphorbia lathyris, the caper spurge or paper spurge, is a species of spurge native to southern Europe, northwest Africa, and eastward through southwest Asia to western China.
Astragalus lemmonii, the Lemmon's milkvetch, is a rare plant of eastern California. It is a member of the bean family, the Leguminosae, and specifically a member of the subfamily Papilionoideae. The genus Astragalus is a large genus within this family; members of this genus are known as milkvetches or locoweeds. Close relatives of this particular species include Astragalus peckii and Astragalus lentiformis.
Euphorbia corollata is an herbaceous perennial plant in the family Euphorbiaceae that is native to North America. A common name for the species is flowering spurge. It has a milky sap that can cause skin and eye irritation in some people. It grows up to 1 m (3 ft) tall, with smooth stems and light green leaves arranged alternately or in whorls. Leaves are about 10 mm wide and 75 mm (3 in) long. Each stem terminates in a panicle 20 to 25 mm across. Flowers are about 6 mm across and consist of one pistillate and several staminate flowers surrounded by five white bracts - not petals but formed from the involucre at the base of the flowers. Flowering spurge blooms from June to September.
Euphorbia misera is a semi-succulent shrub in the genus Euphorbia commonly known as the cliff spurge or coast spurge. A drought-deciduous shrub, it is typically found as a gnarled, straggly plant occupying seashore bluffs, hills and deserts. Like other members of its genus, it has a milky sap, which can be found exuding out of the light gray bark when damaged. The alternately-arranged leaves are round and folded in the middle, with small hairs on them. The "flowers" can be found blooming year-round, and are colored maroon or yellow in the center with 5 white to light-yellow petal-like appendages attached outside. This species is native to the Baja California peninsula and Sonora in Mexico, and the coast of southern California in the United States, where it is a rare species. It is threatened in some localities by the development of its coastal habitat, which tends to be prime locations for high-end residential and commercial developments.
Eriogonum flavum is a species of wild buckwheat.
Euphorbia balsamifera is a flowering plant in the spurge family Euphorbiaceae. It is distributed in the Canary Islands and the western Sahara. It is the vegetable symbol of the island of Lanzarote. Euphorbia adenensis has been treated as a subspecies of this species.
Menodora spinescens is a species of flowering plant in the olive family known by the common name spiny menodora. It is native to the southwestern United States, where it grows in varied mountain, canyon, and desert habitat in California, Nevada, Utah and Arizona.
Euphorbia royleana is a species of flowering plant in the family Euphorbiaceae. It is also known as Sullu spurge, and Royle's spurge. It is a succulent and almost cactus like in appearance although unrelated. It grows right across the Himalaya mountains from Pakistan, India, Bhutan, Myanmar, Nepal to western China, It prefers dry and rocky slopes between 1000 and 1500 meters, but has been found up to 2000 meters. Flowering and fruiting is in spring to early summer (March–July) and seeding is in June–October. It is used as a hedging plant in northern India and has medicinal uses.
Euphorbia abyssinica, commonly known as the desert candle or candelabra spurge, is a species of plant in the family Euphorbiaceae. E. abyssinica is endemic to Ethiopia, Somalia, Sudan and Eritrea. It was first described in 1791, by the German botanist Johann Friedrich Gmelin. In its native habitat, it can grow up to 10 m (33 ft) tall. The woody stem is used for firewood and as timber in roofing, furniture and other items, and the sap is used in traditional medicine. It is also cultivated as an ornamental house plant.
Euphorbia gregersenii, or Gregersen's spurge, is a plant in the family Euphorbiaceae: spurges.
Dudleya arizonica is a species of perennial succulent plant commonly known as the Arizona chalk dudleya and the Arizona liveforever. A member of the genus Dudleya, this species is characterized by long, red flowers that adorn a waxy rosette of succulent leaves. It resembles a reduced desert form of the more coastal chalk dudleya, Dudleya pulverulenta, but differs in its smaller stature, lower number of leaves, and orientation of the flowers. Native to the southwestern United States and northwestern Mexico, it is widespread in range, but is primarily found in scattered, widely separated localities. It can be found as far west as coastal Ensenada to the desolate desert ranges of Nevada. It is one of two species of Dudleya that occur in Arizona, the other being Dudleya saxosa subsp. collomiae, and is the only species on mainland Mexico and in Utah.
Dudleya saxosa subsp. collomiae, known by the common name Gila County liveforever, is a subspecies of perennial succulent plant within the genus Dudleya native to central Arizona. It is characterized by showy bright-yellow flowers on an upright inflorescence colored pink, red or orange. The leaves are green or covered in a white, powdery wax. This species is found growing in rocky slopes, canyons, and crevices, and often on Sonoran Desert sky islands.
Sandbergia is a genus of flowering plants belonging to the family Brassicaceae. They are also in the Boechereae Tribe.
Euphorbia brachycera is a species of flowering plant in the Euphorbiaceae family. It is referred to by the common name horned spurge and is native to Northern Mexico and the Rocky Mountains of the US. It is a rhizomatous herbaceous perennial growing in spreading mats, with narrow green leaves and yellow flowerheads. It can grow up to 2 feet tall. Some of its habitats include canyons, sandy or gravelly slopes, pine-oak woodlands, and mixed coniferous forest.
Euphorbia angusta is a species in the Euphorbiaceae (spurge) family with the common name blackfoot sandmat. It is native to central and south Texas and northern Mexico.
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