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Penstemon pinifolius

Penstemon pinifolius, Photo: Michael Lahanas

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Asterids
Cladus: Lamiids
Ordo: Lamiales

Familia: Plantaginaceae
Tribus: Cheloneae
Genus: Penstemon
Species: Penstemon pinifolius

Penstemon pinifolius Greene

Greene, E.L., Bot. Gaz. 6(6): 218 1881.


International Plant Names Index. 2017. Penstemon pinifolius. Published online. Accessed: Nov. 01 2017.
The Plant List 2013. Penstemon pinifolius in The Plant List Version 1.1. Published on the internet. Accessed: 2017 Nov. 01. 2017. Penstemon pinifolius. Missouri Botanical Garden. Published on the internet. Accessed: 01 Nov. 2017.
Penstemon pinifolius Greene – Taxon details on Integrated Taxonomic Information System (ITIS).
Penstemon pinifolius – Taxon details on National Center for Biotechnology Information (NCBI).

Vernacular names
English: pineneedle beardtongue, pineneedle penstemon

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]

"Penstemon pinifolius". Retrieved 30 January 2021.
"Penstemon pinifolius 'Mersea Yellow'". Missouri Botanical Garden. Retrieved 30 January 2021.
"Penstemon pinifolius". Royal Horticultural Society. Retrieved 24 January 2021.
"Penstemon pinifolius 'Wisley Flame'". RHS. Retrieved 18 January 2021.

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