Native Plants
Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.
Isodendrion longifolium
Isodendrion longifolium A. Gray
Longleaf Isodendrion
Violaceae (Violet family)
Synonym(s): Isodendrion maculatum
USDA Symbol: ISLO2
USDA Native Status: HI (N)
Rare. Shrub with sweetly-fragrant flowers.
The major threats to this species are feral goat, pigs and competition with introduced plant species. (Bibref: 1789).
From the Image Gallery
No images of this plant
Plant Characteristics
Duration: PerennialHabit: Shrub
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Lanceolate
Leaf Pubescence: Villose
Leaf Texture: Leathery
Breeding System: Flowers Bisexual
Inflorescence: Axillary
Fruit Type: Capsule
Size Notes: From 60 to 200 cm. in height.
Leaf: Stipules glabrous, 1.9 to 3 mm long, obliquely linear-lanceolate. Leaves glabrous, subcoriaceous, finely reticulate-veined, linear-oblanceolate 6.5 to 22 cm long, 11 to 30 mm wide, obscurely undulate, remotely low sub-serrate or distinctly serrulate, base abruptly short cuneate, apex subacute. (Reslit: 2850).
Flower: "Flowers solitary in axillary short shoots; corolla caducous, blue, weakly zygomorphic, petals prolonged into a "tube" with bottom petal slightly longer than others and weakly differentiated, scarcely saccate at base; filaments free, anthers dehiscing laterally". (Bibref: 1788). Sepals five, distinct, unequal, persistent, glabrous throughout. Petals five; lower petal 6 to 10 mm long. Stamens 5, unequal or subequal, free on the receptacle, not apiculate; filaments ligulate. (Reslit: 2850).
Fruit: Fruit is a capsule. (Bibref: 1786). Thick-walled. (Bibref: 1788). "Petals and stamens marcescent, persisting around the fruit." (Bibref: 1788).
Bloom Information
Bloom Color: White , PurpleBloom Time: Jan , Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec
Bloom Notes: Corollas white with purple longitudinal stripes.
Distribution
USA: HINative Distribution: Endemic to the Hawaiian islands of Oahu and Kauai. (Webref: 28).
Native Habitat: Gulch slopes and bottoms in moist or sometimes wet forests. (Webref: 28).
Propagation
Propagation Material: SeedsDescription: This is a federally listed species. US Fish and Wildlife Service guidelines should be followed for the propagation of lawfully possessed plants. Wild-growing plants may not be collected or propagated without federal permit.
U.S. Fish & Wildlife Service Threatened & Endangered Status
USFWS Species Profile: Q109Status:Bibliography
Bibref 1789 - Endangered and Threatened Wildlife and Plants; Determination of Endangered or Threatened Status for Fourteen Plant Taxa From the Hawaiian Islands (1996) Rogers, John G.Bibref 1788 - The Families and Genera of Vascular Plants - Volume 11 (eBook) (2014) Kubitzki, K. (editor)
Search More Titles in Bibliography
Web Reference
Webref 6 - Germplasm Resources Information Network - (GRIN) [Online Database] (2018) USDA, ARS, National Genetic Resources Program, National Germplasm Resources Laboratory, Beltsville, Maryland.Webref 27 - USDA Plants Database (2018) USDA, NRCS.
Additional resources
USDA: Find Isodendrion longifolium in USDA PlantsFNA: Find Isodendrion longifolium in the Flora of North America (if available)
Google: Search Google for Isodendrion longifolium
Metadata
Record Modified: 2021-01-01Research By: Joseph A. Marcus