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Oldenlandia corymbosa

L. (1753)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Gentianales Family: Rubiaceae Genus: Oldenlandia

hedyotis

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Description

Key Characters:

Growth Form: Slender annual or perennial herbs.

Stems: Stems prostrate to weakly erect, 1–4 dm long, few–branched to many-branched, glabrous.

Roots:

Leaves: Leaves simple. Opposite. Blades narrowly oblong to linear 15–20 (–30) mm long, 2–5 mm wide. Apex acute, mucronate. Base cuneate. Blades callose. Margins with several glandular teeth of unequal length. Petioles ca. 1 mm long. Stipules ca. 2.5 mm long, connate; stipules usually bearing mucilage-producing colleters on inner surface that aid in protection of the growing shoot tip.

Flowers: Flowers 1–3(–5), axillary, peduncles ca. 8-10(-15) mm long. Flowers insect-pollinated, bisexual (perfect), isostylous or heterostylus. Calyx 4-toothed, the teeth ca. 1 mm long, narrowly to braodly triangular. Corolla lavender to white, thin, broadly tubular, 4-lobed, the lobes 1–2 mm long, throat often hairy; nectary disk usually present. Stamens as many as and alternate with the corolla lobes, inserted at the base of the corolla lobes as well into the tube, the anthers, dithecal, opening by longitudinal slits, dorsifixed. Ovary inferior, occasionally partly so, or very rarely superior, 2-celled; ovules numerous on a peltate placenta; style 1 or as many as carpels, terminal, short or long, included or exserted, glabrous or pubescent, filiform; the stigmas 2, subglobose or elongate, lobed or capitate, dry or occasionally wet.

Fruit: Fruit capsular; didymous; subglobse to oblong; somewhat laterally compressed; thinly cartilaginous; ca. 1.5 mm long; ca. 2–2.5 mm wide; usually with a loculicidally dihiscent beak. Seeds numerous per cell; angular; ca. 0.25 mm long; areolate; often becoming viscid when moistened; seed coat cells smooth to distinctly punctate; granular or tuberculate; with well-developed oily endosperm or endosperm occasionally scanty or absent.

Ploidy: 2n = 18; 36; 54

Habitat:

Elevation Range:

Historical Distribution

Images

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Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Kaua'i Naturalized
O'ahu Naturalized
Kaho'olawe Naturalized
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents


Pollinators

Bibliography

Name Published In: Sp. Pl.: 119 (1753)

Other References

Wagner et al. 1990:1141 (O, EM, H [as Hedyotis corymbosa]); Lorence et al. 1995:50 (K); Oppenheimer & Bartlett 2002:12 (WM); Starr et al. 2002:24 (H); Starr et al. 2006:40 (Ka); Groeninchkx et al. 2009:125/Wagner et al. 2012:64 (Syn. H. corymbosa = O. corymbosa); Lorence & Faccenda 2024:180 (KEY), 183 (note)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Oldenlandia corymbosa Niu valley public tennis court. Growing in sidewalk crack with Chloris barbata and Commelina benghalensis. Preserved_Specimen Prostrate herb with linear leaves. Flowers small, pale lavendar color with 4 lobes. Calyx with minute teeth. Fruit a capsule.My dog almost peed on this specimen. Thomas, M.K. 357 Oahu BISH 2022-05-11
2 Oldenlandia corymbosa Junction of Highways 18 & 19 Common roadside weed. Preserved_Specimen Prostrate herb with white flowers. Herbst, D.R. 5076 Hawaii BISH 1974-10-10
3 Oldenlandia corymbosa Kaumana Substation Disturbed vegetation on 1881 lava flow, vegetation open Metrosideros with understory of introduced shrubs and Dicranopteris. Preserved_Specimen Wagner, W.L. 4640 Hawaii BISH 1982-11-16
4 Oldenlandia corymbosa Lua Makika, summit Associated vegetation: Heteropogon contortus, Chenopodium oahuense. Preserved_Specimen Herb. Starr, F. 403302 Kahoolawe BISH 2004-03-30
5 Oldenlandia corymbosa In front of State Welfare Building, mauka (behind) Washington Place, Honolulu In lawn. Preserved_Specimen Weed. Corn, C. Oahu BISH 1985-08-08
6 Oldenlandia corymbosa S. Hilo Dist. Hilo Airport Weed naturalized in flower bed. Preserved_Specimen Prostrate herb with trailing stems. Corolla pale blue, ripe capsules brown. Lorence, D.H. 5522 Hawaii BISH 1987-08-07
7 Oldenlandia corymbosa Honolulu, at Keeaumoku and Makaloa Streets, edge of parking lot at Tower Records store Preserved_Specimen Corolla white with lavender tinge. Wagner, W.L. 5685 Oahu BISH 1986-07-20
8 Oldenlandia corymbosa W Maui, Lahaina District, Hanakaoo, at Kaanapali Growing in a lawn. Preserved_Specimen Oppenheimer, H.L. 40018 Maui BISH 2000-04-17
9 Oldenlandia corymbosa Shores of Lake Wilson. Growing on the near shore where the water had receded. Preserved_Specimen Funk, E.J. Oahu BISH 1992-07-12
10 Oldenlandia corymbosa Honolulu, at Keeaumoku and Makaloa Streets, edge of parking lot at Tower Records store Preserved_Specimen Corolla white with lavender tinge. Wagner, W.L. 5685 Oahu BISH 1986-07-20
11 Oldenlandia corymbosa An adventive in the lawn of Naniloa Surf Hotel on Hilo Bay Preserved_Specimen Nagata, K.M. 2072 Hawaii BISH 1980-07-23
12 Oldenlandia corymbosa East Maui, Hana District, Kipahulu, Muolea Point, in dry streambed of Papaahawahawa Gulch just above the coast Preserved_Specimen Fruiting. Welton, P. 2114 Maui BISH 2001-05-17
13 Oldenlandia corymbosa Big Island, Hilo Dist., Liliuokalani Gardens Preserved_Specimen Kiehn, M. 89072721 Hawaii BISH 1989-07-27
14 Oldenlandia corymbosa Volcano, Hawaii Preserved_Specimen Kami, R. Hawaii BISH 1965-07-01
15 Oldenlandia corymbosa Hilo, in city limits Preserved_Specimen Kami, R. Hawaii BISH 1965-01-19
16 Oldenlandia corymbosa Hilo Weed of bare vacant lot near Hilo Bay. Preserved_Specimen Prostrate herb with white flowers. Herbst, D.R. 5510 Hawaii BISH 1975-10-20
17 Oldenlandia corymbosa East Maui, Hana District, Hana Bay, Community Center Common prostrate, weedy herb around building. Preserved_Specimen Corolla white. Flynn, T.W. 2523 Maui BISH 1987-10-21
18 Oldenlandia corymbosa Bishop Museum Grounds, next to mail trailor beween Paki and Pauahi Moist wet soil collections in asphault under edges of trailor. Preserved_Specimen Herbaceous weedy plant, growing in clumps of many individual plants. Small opposite oblong leaves; Flowers tiny white on peduncles about 4-5 mm long. Crago, L.M. 2005003 Oahu BISH 2005-01-12
19 Oldenlandia corymbosa W Maui, Lahaina District, Lahaina Town, on Dickenson St betw Wainee & Luakini Streets In sidewalk landscaping. Preserved_Specimen Weed. Oppenheimer, H.L. 30019 Maui BISH 2000-03-29
20 Oldenlandia corymbosa Hilo Common weed around buildings. Preserved_Specimen Prostrate, flowers white. Fosberg, F.R. 60605 Hawaii BISH 1980-09-10
21 Oldenlandia corymbosa East Maui, Hana District, Kalahu Point, PTBG Kahanu Garden, N of Piilanihale Heiau along trail to cottage Herb in gravel path. Preserved_Specimen Lvs dark green above, paler below. Corolla white, 4-lobed. Flynn, T.W. 2597 Maui BISH 1987-11-10
22 Oldenlandia corymbosa East Maui, Hana District, Waianapanapa State Park along roadside between cabins Prostrate mats in roadside cinder. Preserved_Specimen Hobdy, R.W. 2334 Maui BISH 1986-04-04
23 Oldenlandia corymbosa East Maui, Kawililipoa, Kihei Growing in exposed sand areas. Associated vegetation: Sporobolus virginicus, Prosopis pallida. Preserved_Specimen Annual prostrate herb, <0.5dm ht, ca. 1dm diameter. Starr, F. 111041 Maui BISH 2001-11-04
24 Oldenlandia corymbosa Honolulu. Intersection of Kiao ò St. and Hobron Lane. Ewa side of Hobron lane Under hedge Preserved_Specimen Small herb, 5 cm ht., fls. white 4-merous, frt. capsule Motley, T.J. 2889 Oahu BISH 2002-05-23
25 Oldenlandia corymbosa Keahou Kona Aston Resort, near coast Weed in cinder in recent planting. Preserved_Specimen Prostrate herb to 20 cm diameter, stems not rooting at nodes; leaves paler and pubescent underneath; flowers odorless, purple, 4-lobed; fruit capsules aging brown. Starr, F. 4091 Hawaii BISH 2000-04-09
26 Oldenlandia corymbosa Residence along Kewalo St From crack in asphalt Preserved_Specimen Common Faccenda, K. 1741 Oahu BISH 2021-04-20
27 Oldenlandia corymbosa Lihue Dist.; Lihue Airport, adjacent to car rental agencies Localized in & along edge of Zoysia lawn. Preserved_Specimen Low herb w/matted or trailing stems; corolla white, tinged w/pale violet. Naturalized. Lorence, D.H. 6611 Kauai BISH 1990-09-26
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