Archives - Page 3
-
POLIBOTANICA 51
No. 51 (26)Fallugia paradoxa (D. Don) Endl. ex Torr.
Rosaceae. “Penacho de Apache”Shrubs up to 2 m tall. Leaves 6-8 mm long, in fascicles, usually deciduous. Flowers white and showy, generally unisexual, 3 cm in diameter. Achenes obovoid-fusiform, each with a style that is modified into a pink or purplish, twisted and hairy feather, up to 3 cm long, the “feather” helps to disperse the seeds by the wind. Prosper in xerophilous scrub. It is used in basketry to build cradles, brooms and arrows, it is considered valuable for erosion control in desert areas. Distribution Northwest of Mexico and South of the USA
-
POLIBOTANICA 50
No. 50 (25)Poliomintha maderensis Henr. Lamiaceae. Mexican oregano. Small aromatic shrub; erect stems. Opposite leaves, oblong-lanceolate, 8-13 (18.5) mm long by 2.5-5 mm wide, petioles about 1 mm long. Zygomorphic flowers, solitary, subsesile 30-35 mm long, lilac, tubular calyx 10-10.5 mm long, bilabiate, 5-lobed; stamens 2; gynobasic style; bifid stigma. It thrives in the Pinus forest at an altitude of 2,600 m. Endemic plant of the state of Coahuila, Mexico. It is cultivated as an ornamental plant.
-
POLIBOTANICA 49
No. 49 (25)The concept of urban forest refers to forests, green spaces, trees, and related abiotic, biotic, and cultural components within and around cities and communities. Urban forests are the backbone of green infrastructure, linking rural and urban areas and improving a city's environmental footprint.
-
POLIBOTANICA 48
No. 48 (24)Mammillaria spinosissima Lem. Cactaceae. Columnar body cactus up to 30 cm tall and 10 cm in diameter; tubercles woolly in axils, conical, and dark bluish-green; circular areoles with 20 to 30 whitish radial spines up to 1 cm long and 7 to 15 central spines that are usually reddish. Funnel-shaped flowers, arranged near the apex like a crown, 15-20 mm long and 15 mm in diameter, pink, purple or red. Fruit clavate, 20 mm long, red. Endemic plant of Mexico, it thrives in the states of Morelos, Mexico and Guerrero. It is used as an ornamental plant.
