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Ariocarpus is a small genus of succulent, subtropical plants of the family Cactaceae.. It comes from limestone hills of Rio Grande in the south of Texas (Ariocarpus fissuratus) and also the north and the center of Mexico (all other species including A. fissuratus forms known as A. loydii and A. fissuratus var. intermedius) with strong sunshine exposures.
The capsules explode when ripe, splitting into segments and launching seeds at 70 m/s (250 km/h; 160 mph). [5] One source states that ripe capsules catapult their seeds as far as 100 m (330 ft). [ 9 ] [ verification needed ] Another source states that seeds are thrown as far as 45 m (150 ft) from a tree, with a mode of about 30 m (100 ft). [ 10 ]
The ripe seed is on the shrub for approximately six months and ripens in winter which allows plenty of time for dispersal via birds and other animals. During Spring, this species produces pale green leaves with white tomentum, which creates contrast against the old foliage with the dark leaves and red flowers.
The tree produces spiky green fruits about the size of a golf ball, which turn brown and drop off the tree over an extended period beginning in fall and continuing over the winter.
Chinese tallow tree Euphorbiaceae (spurge family) Yes Texas (I) 994 Vernicia fordii: tungoil tree Euphorbiaceae (spurge family) Yes Yes 995 Fabaceae: legume family (peas) Albizia: silk trees and false acacias; Albizia julibrissin: silktree Fabaceae (legume family (peas)) Yes Yes Texas (I) 345 Bauhinia: orchid trees; Bauhinia lunarioides: Texasplume
Astrophytum asterias is a species of cactus in the genus Astrophytum, and is native to small parts of Texas in the United States and Mexico. Common names include sand dollar cactus , sea urchin cactus , star cactus and star peyote .
The seeds are arranged in 2 rows, or staggered in a zigzag pattern, towards the centre of the pod, which in turn consists of 2 valves, so a cross-section of the fruit shows 4 seeds in total. This is a distinguishing feature of the genus Diplotaxis , although it is not always easy to see, as plants are not self-pollinating, so ripe seeds do not ...
Sand dollar cactus, sea urchin cactus, star peyote: small parts of Texas in the United States and Mexico. Astrophytum capricorne (A.Dietr.) Britton & Rose: Goat's horn cactus: Coahuila regions of Northern Mexico. Astrophytum caput-medusae D.R.Hunt: Nuevo León, Mexico Astrophytum coahuilense (H.Moeller) Kanfer: Coahuila and Durango, Mexico