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Penstemon spectabilis is a species of penstemon known by the common name showy penstemon or showy beardtongue. It is a perennial herb native to southern California and Baja California , where it grows in the chaparral , scrub, and woodlands of the coastal mountain ranges.
Showy beardtongue or showy penstemon is a common name for several plants and may refer to: Penstemon cobaea, native to the south central United States, with pink to purple flowers; Penstemon speciosus, native to the western United States, with blue flowers; Penstemon spectabilis, native to California and Baja California, with purple flowers
[1] [2] In both POWO and WFO, it is regarded as a synonym of Penstemon bradburyi. However, P. grandiflorus continues to be widely used as the correct species name in North America, including by the Flora of North America and the USDA Natural Resources Conservation Service PLANTS database (PLANTS).
The leaves are usually lance-shaped and sometimes folded lengthwise, usually less than 15 cm (6 in) long. They are arranged oppositely and often clasp the stem at the bases. The showy inflorescence bears tubular flowers with expanded mouths 26–38 mm (1– 1 + 1 ⁄ 2 in) long. The flowers are light to deep blue, lavender, and purple, and ...
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 America.
Penstemon teucrioides has showy, funnel shaped, blue or violet flowers, with a white or yellowish interior and reddish-violet nectar guides.The fused flower petals are 15–19 millimeters long, with a tube length of about 6–7 millimters and a width of 4–5.5 millimeters. [3]
Penstemon grandiflorus basal leaves. Penstemon grandiflorus is a large herbaceous plant with flowering stems that can reach as much as 120 centimeters in height or be as short as 40 centimeters. More commonly the plants will be 50–90 centimeters in height at full size. [2] The whole of the stem and leaves are smooth and free of hairs .
Because of the showy nature of its upwards facing blossoms and long-lived nature, many gardeners regard bush penstemons as one of the best penstemons to grow in gardens. [23] [7] In hot, dry environments with well draining soil bush penstemon are recommended, but are difficult to grow in other conditions. [7]
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