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Osteomeles anthyllidifolia

(Hawai'i Hawthorn, Ulei, Uulei)

Overview

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Prostrate , often trailing shrub with small leaflets , indigenous to Hawaii. Flowers white, in conspicuous clusters , developing small, white, bony-centered, apple-like fruits nearly half an inch in diameter. The wood was used by the Hawaiians to make spears for fishing and to make the 'ukeke, a musical instrument.

Common Names

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Common Names in English:

Hawai'i Hawthorn, Ulei, Uulei

Description

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Subfamily Coliadinae

Sulphurs are members of the Family Pieridae. In North America, sulphurs range from Mexico to northern Canada. Females of most species are distinctly different from males. Some species are mud-puddlers and will collect around muddy pools on dirt roads. Sulphurs overwinter as larvae.

Genus Osteomeles

Shrubs deciduous or evergreen ; buds small, with several narrow scales . Leaves imparipinnate ; stipules linear to lanceolate; rachis narrowly winged ; leaflets opposite, sessile or shortly petiolulate , small, margin entire . Corymb terminal , numerous flowered; bracts caducous . Hypanthium campanulate . Sepals 5. Petals 5, white. Stamens 20. Ovary inferior; 5-loculed, with 1 ovule per locule; styles 5, free . Fruit a small pome, with persistent erect sepals; seeds erect; cotyledons plano-convex .

About five species: E Asia; three species (one endemic) in China.Ku Tsue-chih, Stephen A. Spongberg "Osteomeles". in Flora of China Vol. 9 Page 117. Published by Science Press (Beijing) and Missouri Botanical Garden Press. Online at EFloras.org.

Physical Description

Habit: Shrub • Growth Form: Single Stem • Shape and Orientation: Semi-Erect

Flowers: Bloom Period: Spring • Flower Color: White • Flower Conspicuous: Yes

Seeds: Seed per Pound: 3400 • Seed Spread Rate: Moderate • Seedling Vigor: Medium • Fruit/Seed Abundance: Medium • Fruit/Seed Color: White • Fruit/Seed Conspicuous: No • Cold Stratification Required: No

Foliage: Foliage Color: Dark Green • Foliage Porosity Summer: Moderate • Foliage Porosity Winter: Moderate • Foliage Texture: Fine • Fall Conspicuous: No • Leaf Retention: Yes

Size/Age/Growth

Active Growth Period: Year Round • Growth Rate: Slow • Mature Height (feet): 12.0 • Maximum Height at 20 Years (feet): 12 • Size: 24-36" tall. • Vegetative Spread Rate: None • Lifespan: Lifespan

Biology

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Reproduction

Duration: Perennial • Coppice Potential: No • Progagated by Bulbs: No • Propagated by Bare Root: Yes • Propagated by Container: Yes • Propagated by Corms: No • Propagated by Cuttings: No • Propagated by Seed: Yes • Propagated by Sod: No • Propagated by Sprigs: No • Propagated by Tubers: No • Fruit/Seed Period Begin: Spring • Fruit/Seed Period End: Summer • Fruit/Seed Persistence: Yes

Growth

Soil: Adapted to Medium Textured: Adapted to Medium Textured Soils • Adapted to Coarse Textured Soils: Yes • Anaerobic Tolerance: None • Salinity Tolerance: None • CaCO3 Tolerance: Medium • Minimum pH: 5.5 • Maximum pH: 7.0 • Fertility Requirement: Medium

Sunlight: Sun Exposure: Sun to Partial Shade. • Shade Tolerance: Intermediate

Moisture: Drought Tolerance: Medium • Minimum Precipitation: 35 • Maximum Precipitation: 80 • Moisture Use: Medium

Temperature: Minimum Temperature (F): 35 • Minimum Frost Free Days: 365 • Cold Hardiness: 11. (map)

Taxonomy

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Unambiguous Synonyms

  1. Osteomeles anthyllidifolia (Sm.) Lindl.
  2. Osteomeles anthyllidifolia Sm.
  3. Pyrus anthyllidifolia Sm.

Notes

A tentatively accepted name in the RHS Horticultural Database.

Name Status: Accepted Name. Latest taxonomic scrutiny: –

Similar Species

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Members of the genus Osteomeles

There are approximately 38 species in this genus:

O. anthyllidifolia (Hawai'i Hawthorn) · O. anthyllidifolia var. boninensis · O. anthyllidifolia var. subrotunda · O. anthyllifolia · O. cordata · O. cuneata · O. cuneata var. escalloniaefolia · O. cuneata var. glaucophylla · O. cuneata var. reticulata · O. escalloniaefolia · O. ferruginea · O. ferruginea var. cordata · O. ferruginea var. latifolia · O. gayana · O. glabrata · O. glabrata var. obtusifolia · O. goudotiana · O. incerta · O. intermedia · O. lanata · O. latifolia · O. obovata · O. obtusifolia · O. pachyphylla · O. pentlandiana · O. pernettyoides · O. persoonii · O. pyracantha · O. resinoso-punctata · O. rufescens · O. schwerinae · O. schwerinae var. boninensis · O. schwerinae var. microphylla · O. schwerinae var. schwerinae · O. schwerinae var. typica · O. schweriniae · O. schweriniae var. microphylla · O. subrotunda var. glabrata

Bibliography

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More Info

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Notes

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Contributors

Identifiers

Footnotes

Last Revised: 2008-07-22