Penstemon pinifolius

Apparently Secure  (NatureServe)
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Lamiales
Family: Plantaginaceae
Genus: Penstemon
Species:
P. pinifolius
Binomial name
Penstemon pinifolius

Penstemon pinifolius, the pine-leaved penstemon or pine-needle beardtongue,[1] is a species of flowering plant in the plantain family Plantaginaceae, native to the southwestern USA.

Growing to 20 cm (7.9 in) tall and broad, it is a small evergreen shrub with arching stems of narrow needle-like leaves and bright scarlet tubular flowers in summer. Its natural habitats in the rocky uplands of Arizona and New Mexico[2] are a clue to its preferences in cultivation. Though moderately hardy to −10 °C (14 °F) it requires an extremely well-drained, sunny position with some protection from hard frosts in winter.[3]

The species[3] and the cultivar 'Wisley Flame' [4] have both gained the Royal Horticultural Society's Award of Garden Merit. 'Mersea Yellow' is another notable cultivar, with brilliant lemon-yellow flowers.[2]

References

  1. ↑ "Penstemon pinifolius". Gardenia.net. Retrieved 30 January 2021.
  2. 1 2 "Penstemon pinifolius 'Mersea Yellow'". Missouri Botanical Garden. Retrieved 30 January 2021.
  3. 1 2 "Penstemon pinifolius". www.rhs.org. Royal Horticultural Society. Retrieved 24 January 2021.
  4. ↑ "Penstemon pinifolius 'Wisley Flame'". RHS. Retrieved 18 January 2021.


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