Plant Database

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Plant Characteristics

Duration: Perennial
Habit: Shrub
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Shape: Elliptic , Ovate
Leaf Pubescence: Villose
Leaf Margin: Serrulate
Leaf Texture: Papery
Breeding System: Flowers Bisexual
Inflorescence: Axillary
Fruit Type: Capsule
Size Notes: To about 2 m in height.
Leaf: "Leafy branchlets 1.5-3 mm. in diameter, leafy for 5-2 0 mm., bearing 4 -8 leaves in a term inal crowd ed plume, the leaves mostly ascending; this upper stem closely appressed white puberulent but stem and hairs both largely concealed by the crowded, imbricate stipules ; stipules 4-4.7 mm. long, narrowly deltoid; slightly oblique, the heavy raised midrib densely app ressed puberulent, the sides brown membranous and ciliolate; petioles 5- 9 mm. lon g, slender, closely appressed white puberulent; blades 2.5- 5.4 cm. long, 12-28 mm. wide, chartaceous, above dark green, subglabrate except for the veins towards the base, below paler and appressed puberulent, ovate or even elliptic, the margin subentire or on the larger leaves barely subserrulate, the veins not conspicuous;" (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. Petals five. Stamens 5, unequal or subequal, free on the receptacle ; 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: Yellow , Green
Bloom Time: Jan , Feb , Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov , Dec
Bloom Notes: Corollas pale green to greenish yellow. May flower any time of year with sufficient rains.

Distribution

USA: HI
Native Distribution: Endemic to the Hawaiian islands of Oahu, Hawaii, Maui, Lanai, Niihau and Kauai. (Webref: 28).
Native Habitat: Dry shrublands. (Webref: 28).

Propagation

Propagation Material: Seeds
Description: 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: Q1XK
Status: Endangered
Historic Range: U.S.A. (HI)
Critical Habitat: 17.96(a)
Special Rules: N/A
This information is derived from the U.S. Fish & Wildlife Serrvice Environmental Conservation Online System.

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)

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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 pyrifolium in USDA Plants
FNA: Find Isodendrion pyrifolium in the Flora of North America (if available)
Google: Search Google for Isodendrion pyrifolium