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Fraxinus uhdei

(Wenz.) Lingelsh. (1907)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Lamiales Family: Oleaceae Genus: Fraxinus

tropical ash

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Description

Key Characters:

Growth Form: Trees up to 24(–28) m tall.

Stems: Bark gray or brown, furrowed, young branches pubescent, soon glabrate.

Roots:

Leaves: Leaves compound (odd-pinnate). Opposite. Blades 15–28 cm long, leaflets 5–9, (5–)7–11 cm long, 2–5 cm wide. Apex long-acuminate. Base cuneate. Upper surfaces glabrous, dark green; lower surfaces pale green, puberulent along midrib, covered with peltate glands; petiolules 3–13 mm long. Margins irregularly serrulate. Petioles 6–10 cm long. Stipules absent.

Flowers: Flowers in panicles 13–20 cm long. Flowers unisexual (and the plants dioecious); buds paired, covered with brown, finely pubescent scales. Calyx minute, 4-toothed, valvate. Stamens 2(3), inserted on corolla tube alternate with the lobes, abortive in pistillate flowers; anthers dithecal, oriented back–to–back, opening by longitudinal slits. Ovary superior, 2-carpellate, 2-celled; ovule placentation axile; style slender to broadened and compressed; stigmas 2, dry.

Fruit: Samaras with 1 terminal wing; oblong–elliptic to oblong–oblanceolate; 2–4 cm long; the wing 5–6 mm wide; apex with a small notch. Seeds 1 per fruit.

Ploidy: 2n = 46

Habitat:

Elevation Range:

Historical Distribution

Uses and Culture

USES

  • Yes

Natural History

Statewide Status

Naturalized

Island Status

Kaua'i Naturalized
O'ahu Naturalized
Molokai Naturalized
Lana'i Naturalized
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents

Water/Ocean
Wind
Forestry

Pollinators

Bibliography

Name Published In: Bot. Jahrb. Syst. 40: 22 (1907)

Other References

Wagner et al. 1990:991 (K, O, Mo, L, M, H); Staples & Herbst 2005:438 (KEY), 444 (DESCR)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Fraxinus uhdei Waipahu; Oahu Sugar Co. manager's residence Preserved_Specimen Burns Jr., C.E.S. Oahu BISH 1959-08-13
2 Fraxinus uhdei Honolulu, Tantalus Preserved_Specimen Russ, G.W. Oahu BISH 1932-05-12
3 Fraxinus uhdei probably Oahu Preserved_Specimen Judd, C.S. Oahu BISH 1926-12-01
4 Fraxinus uhdei Lanaihale, along forestry side road near beginning of Munro Trail Preserved_Specimen Herbst, D.R. 4039 Lanai BISH 1974-06-12
5 Fraxinus uhdei Hilo Forest Reserve Preserved_Specimen Bryan, L.W. Hawaii BISH 1954-02-18
6 Fraxinus uhdei The Nature Conservancy Kamakou Preserve In gulch. Preserved_Specimen One of the largest trees in the gulch (aside from stands of Pinus)m ca 20 m tall; growing on a steep slope, just off of the trail tht forks S at the Kawela Onini Gulch sigh on the dirt road leading SW to the gulch off of the Main Forestry Road (also called Kamakou Forest Preserve Road). Old bark deeply fissured, straited. Frts balloon-like with 3 - 4 wings, wind dispersed; exocarp green, turning crimson red when mature, tan when old. Silica sample deposited in the BBG Lab tissue collection. Pell, S.K. 767 Molokai BISH 2008-07-24
7 Fraxinus uhdei Kipapa Trail, 3/4 mi from refuge boundary, N side of trail, upslope ~2 m off trail Metrosideros, Acacia, Dicranopteris wet lowland forest Preserved_Specimen ~8 m tree; main trunk sparsely foliated, new shoots and leaves toward base of trunk; leaves odd-pinnately compound Reynolds, L.S. 141 Oahu BISH 2006-06-15
8 Fraxinus uhdei Honolulu; Makiki Ridge Dry, windy slope. Preserved_Specimen Tree, 12 m. high, 40 cm. diam.; bark dark gray, firm smallridges. Flowers green. Zschokke, T.C. 18 Oahu BISH 1927-04-28
9 Fraxinus uhdei Wheeler Army Airfield, Wheeler Gulch. Associated canopy: Grevillea robusta, Eucalyptus sp. Understory: Megathyrsus maximus. Preserved_Specimen Tree 15 ft tall, 6 inch dbh. Naturalized; collected from swale and not in landscaping, right under a 30 ft tall Fraxinus tree, 3 ft dbh. Seedlings not observed. Kawelo, K. 489 Oahu BISH 2018-02-21
10 Fraxinus uhdei Wheeler Army Airfield. Growing with planted Fraxinus americana as trees lining roadway. Preserved_Specimen Naturalized tree, growing out of landscaping, resprouting from base of cut stumps. No seedlings observed. Kawelo, K. 490 Oahu BISH 2018-02-21
11 Fraxinus uhdei Waimea District: Kokee State Park, Camp Sloggett(YMCA camp) off Mohihi Road, ca. 0.7 miles East of Highway 550 planted area with escaped exotics, surrounded by mixed mesophytic forest Preserved_Specimen Trees 10-12m. tall, inflorescence greenish, leave deciduous. Lorence, D.H. 5753 Kauai BISH 1988-01-28
12 Fraxinus uhdei Peacock Flats Forestry plantings above the campground. Preserved_Specimen Welton, P. 673 Oahu BISH 1991-02-17
13 Fraxinus uhdei Kona District: Kahaluu Forest Reserve; along jeep road about 2 miles above gate At edge of wet Metrosideros forest. Preserved_Specimen Small cultivated tree. Herbst, D.R. 5407 Hawaii BISH 1975-07-15
14 Fraxinus uhdei Waianae Mountains, E. of Puu Kaua, Ekahanui Gulch Preserved_Specimen Planted trees, 10 m. x 3 dm.; leaves pale beneath. St.John, H. 24691 Oahu BISH 1951-03-18
15 Fraxinus uhdei Waianae Mountains, Houliuli Forest Reserve Forestry planting. Preserved_Specimen Medium-sized tree. Herbst, D.R. 5257 Oahu BISH 1975-03-16
16 Fraxinus uhdei North Hilo District: Hilo Forest Reserve; Laupahoehoe Moist Metrosideros forest. Preserved_Specimen St.John, H. 18628 Hawaii BISH 1937-12-31
17 Fraxinus uhdei North Hilo District: Laupahoehoe, Hilo Forest Reserve Moist Metrosideros forest. Preserved_Specimen St.John, H. 18628 Hawaii BISH 1937-12-31
18 Fraxinus uhdei Mokueia Forest Reserve, hunting area, Waianae Range, SE of Peacock Flat Preserved_Specimen Tree to 15 m. deciduous. Annable, C.R. 3289 Oahu BISH 1997-02-04
19 Fraxinus uhdei SE Honolulu; Tantalus Drive Preserved_Specimen Large tree, 2 ft. ??, 1 ft. diam., introduced. Little Jr., E.L. 31004 Oahu BISH 1976-08-05
20 Fraxinus uhdei Exotic forest in Ekahanui Gulch Preserved_Specimen Common. Takeuchi, W.N. 2076 Oahu BISH 1985-03-10
21 Fraxinus uhdei Hilo Forest Reserve, in old plantation in Laupahoehoe section HUMAN_OBSERVATION Friday, J.B. Hawaii 3/6/2013
22 Fraxinus uhdei Hilo Forest Reserve, in old plantation in Laupahoehoe section HUMAN_OBSERVATION Friday, J.B. Hawaii 3/6/2013
23 Fraxinus uhdei Makiki Ridge Preserved_Specimen Fruit and flower Gsehokke, T. 18 Oahu BISH 1927-04-28
24 Fraxinus uhdei Hilo Forest Reserve, Laupahoehoe Section HUMAN_OBSERVATION Friday, J.B. Hawaii 12/18/2003
25 Fraxinus uhdei Hilo Forest Reserve, in old plantation in Laupahoehoe section HUMAN_OBSERVATION Friday, J.B. Hawaii 9/28/2009
26 Fraxinus uhdei Ookala HUMAN_OBSERVATION Friday, J.B. Hawaii 2/2/2009
27 Fraxinus uhdei Ookala HUMAN_OBSERVATION Friday, J.B. Hawaii 3/30/2007
28 Fraxinus uhdei West Maui, Lahaina District, Pohakupule Gulch Preserved_Specimen Spreeding from plantings; small trees 5-10m tall. Oppenheimer, H.L. 40303 Maui BISH 2003-04-16
29 Fraxinus uhdei Wahiawa; Wheeler Field Preserved_Specimen Clay, H.F. Oahu BISH 1959-08-07
30 Fraxinus uhdei TPR Preserved_Specimen Adee, K.T. Hawaii BISH 1979-05-31
31 Fraxinus uhdei Wahiawa Preserved_Specimen Fine-looking tree, with rich, dark-green foliage. Claflin, M.P. Oahu BISH 1948-03-24
32 Fraxinus uhdei Hawaii Preserved_Specimen Leaves white-bearded on under side along midrib, especially near petiole. Bryan, L.W. Hawaii BISH 1957-03-11
33 Fraxinus uhdei North Kona District: Puu Lehua Preserved_Specimen Rock, J.F.C. 25724 Hawaii BISH 1957-03-16
34 Fraxinus uhdei Along ditch roas with of Reservoirs. of Wahiawa Bog just below Puu Anuka Preserved_Specimen Stone, B.C. 3737 Kauai BISH 1961-08-11
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