2017 John Game 2017 Steve Matson 2018 John Game 2017 Steve Matson 2022 Ryan O'Dell 2018 John Game 2017 Steve Matson 2022 Ryan O'Dell 2023 Mary Ann Machi 2023 Mary Ann Machi 2023 Mary Ann Machi 2021 Saskia Raether 2017 Steve Matson 2009 Barry Rice
Pinguicula macroceras is a perennial herb (carnivorous) that is native to California, and also found elsewhere in North America and beyond.
[Wikipedia] Description, Habitat, Distribution, Ecology: Pinguicula macroceras, the California butterwort[1] or horned butterwort, is a species of perennial carnivorous herb that is native to the North American Pacific coast, as well as other select distributions in Canada, Russia, Japan, and the United States.[3] [7] Common names include California butterwort, horned butterwort and butterwort. Pinguicula macroceras belongs to the genus Pinguicula and the family Lentibulariaceae.
Description
Pinguicula macroceras is a carnivorous perennial herb growing less than 20 cm tall.[3] With simple fleshy leaves (green-dark brown) that form a basal rosette, that are often recognized as slimy or sticky, and occasionally incurving over trapped prey.[3] The leaves are adaxially glandular with stalked glands for capturing small organisms and sessil glands for the digestion of their prey.[3] A single rosette can have 1-5 inflorescences held up by individual stems, which are composed of a single purple-blue flower (rarely observed with 2) that lack bracts.[3] The calyx upper lip of the flower is 3-lobed, while the lower lip is 2-lobed with the center colored white.[3] The corolla measures 13?21 mm with a lip that is often found to be hairy and generally does not block the throat of the flower.[3] The flowers form a distinct horn on the top, hence the common name horned butterwort.
Habitat
Pinguicula macroceras are found growing in moist habitats and often in serpentine conditions.[3] Moist slopes and serpentine banks along creeks and rivers, at an altitude less than 1800 m are places where they are likely to be located.[4] Serpentine cliff sides (most often north facing) with fast flowing seeps have also been documented habitat of the Pinguicula macroceras.[4] Moist habitats that are home to Pinguicula macroceras are often dominated by layers of moss that they form basal rosettes on top of and bury their roots underneath.
Distribution
In North America P. macroseras is found within 750 km of the Pacific coast in California, Oregon, Washington, and into Canada.[1] [7] Other populations of P. macroceras are known to exist in Russia and Japan.[3] Disputes over the classification of P. macroceras as a species rather than a sub-species of P. vulgaris along with the difficulties of distinguishing the two species from each other have made defining the distribution of P. macroceras difficult in areas where the species are sympatric.[2]
Ecology
Pinguicula macroceras - growing on moss covered cliff side in Hiouchi, California.
Pinguicula macroceras exists in an ecological niche that is unsuitable for most other types of plant life with some exceptions e.g. moss. They have done this by growing in water abundant, nutrient deprived serpentine soils and cliff sides, adopting a carnivorous behavior to supplement the nutrients that are absent in the serpentine habitats. (contributed by Mary Ann Machi)
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Suggested Citation
Calflora:
Information on California plants for education, research and conservation,
with data contributed by
public and private institutions and individuals.
[web application]. 2023. Berkeley, California:The Calflora Database
[a non-profit organization].Available:
https://www.calflora.org/(Accessed: 12/11/2023).