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Penstemon / ˈ p ɛ n s t ɪ m ən /, [2] the beardtongues, is a large genus of roughly 280 species of flowering plants native to North America from northern Canada to Central America. . It is the largest genus of flowering plants endemic to North Ameri
Penstemon gentianoides, the gentian beardtongue or gentian-leaved penstemon, is a species of flowering plant in the plantain family Plantaginaceae.Found on volcanic mountain slopes across Mexico and Central America, especially in Mexican mountain pine forests, it is a somewhat shrubby perennial herb that can grow up to 1.5 meters tall in good conditions.
Penstemon comarrhenus is a herbaceous plant with stems that either grow straight upwards or out a short distance before curving to grow upwards. They usually reach 40 to 80 centimeters (1.3 to 2.6 ft) in height, but may be as short as 18 cm (7 in) or as tall as 120 cm (3.9 ft) when full grown. [2]
Penstemon albidus is a long lived herbaceous plant that most often blooms sometime from April to June. [8] The flowering stems are 8–60 cm in height, but more typically 15–50 cm [ 10 ] and stand upright with only a slight curve at the base. [ 4 ]
Penstemon secundiflorus is a long lived [8] mostly herbaceous plant.It usually dies back fully each year, but may retain some leaves over the winter or have a slightly woody above ground stem, called a caudex, that it will re-sprout from in the spring.
At the base of the plant are lanceolate bluish green leaves that grow in a rosette pattern. From the base emerge the flower stalks, which are 2 to 5 feet high and topped with numerous deep-throated flowers, usually pink but selected horticulturally for red color. Parry's penstemon is a desert plant. It thrives in full sun to part shade.
Penstemon eatonii is a herbaceous plant with a few to several medium height stems that are between 30 and 100 centimeters (1.0 and 3.3 ft) when full grown. [3] The stems can grow straight upright or might grow out and then curve to growing upwards.
Penstemon cyaneus is a Perennial plant with stems that grow straight upwards (erect) or grow outwards and then curve to grow upright. They are usually 30 to 80 centimeters tall, but occasionally will be just 17 cm when full grown.
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