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Sporobolus diandrus

(Retz.) P.Beauv. (1812)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Monocots Order: Poales Family: Poaceae Genus: Sporobolus

Indian dropseed

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Description

Key Characters:

Growth Form:

Stems:

Roots:

Leaves:

Flowers:

Fruit:

Ploidy:

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
Molokai Only found in cultivation
Lana'i Not in flora
Maui Naturalized
Hawai'i Naturalized

Dispersal Agents


Pollinators

Bibliography

Name Published In: Ess. Agrostogr.: 26 (1812)

Other References

Wagner et al. 1990:1596 (O, L, H [as S. diander]); Lorence & Flynn 1997:11 (K); Herbst & Clayton 1998:36/Faccenda, Yorkston & Morden 2024:39, 50 (KEY); Peterson et al. 2001:206 (spelling change to diandrus); Faccenda 2023c:143 (remove L [re-IDed as S. elongatus]); Oppenheimer & Pezzillo 2024:63 (EM)

Occurrences

SNo. Scientific Name Locality Habitat Basis of Record Description Recorded By Record Number Island Source Date
1 Sporobolus diandrus Hawaii Experiment Station Preserved_Specimen Forbes, C.N. Oahu BISH 1913-01-01
2 Sporobolus diandrus Kuloa, Morgan Ranch, by old Sugar Mill Preserved_Specimen Whitney, L.D. 4198 Oahu BISH 1936-06-05
3 Sporobolus diandrus University of Hawaii campus - between George hall & University Avenue Preserved_Specimen Herbst, D.R. 60 Oahu BISH 1966-04-12
4 Sporobolus diandrus East Maui, Makawao District Ulupalakua Preserved_Specimen Oppenheimer, H.L. 81907 Maui BISH 2019-08-30
5 Sporobolus diandrus Honolulu Preserved_Specimen Forbes, C.N. 1715 Oahu BISH 1911-04-16
6 Sporobolus diandrus Honolulu; H.S.P.A. Experiment Station; Vineyard St. Nursery Preserved_Specimen Duvel, A. 108 Oahu BISH 1925-04-10
7 Sporobolus diandrus Papakolea (J.M. Westgate's yard) Preserved_Specimen Ripperton, J.C. Oahu BISH 1931-07-31
8 Sporobolus diandrus Honolulu; Corner of Victoria & Green Streets, Phillip's Commercial School Preserved_Specimen Illingworth, J.F. Oahu BISH 1936-07-01
9 Sporobolus diandrus Wailae Beach Park Urban Park. Growing in a shady area next to the restrooms with Oxalis corniculata, Calyptocarpus vialis, Indigofera spicata, and Eragrostis amabilis. This was the only colony observed, the plants were mostly growing right up against the restroom wall. Preserved_Specimen Short-lived perennial; culms decumbent, ca 10-15 cm. lng rooting at nodes; lower glume much shorter than spikelet; spikelets < 4 mm. long. Ross, M.C. 1830 Oahu BISH 2022-11-02
10 Sporobolus diandrus Honolulu Grassland along street. Preserved_Specimen Hitchcock, A.S. 140707 Oahu BISH 1916-07-19
11 Sporobolus diandrus Ridge back of Wilhelmina Rise Rather dry, lowland conditions Preserved_Specimen Whitney, L.D. 4190 Oahu BISH 1936-05-24
12 Sporobolus diandrus East Maui, Makawao District, Kanaio Dodonaea Dry Shrudland Preserved_Specimen Oppenheimer, H.L. 111712 Maui BISH 2017-11-14
13 Sporobolus diandrus Honolulu; Manoa Valley Along roadside. Preserved_Specimen Bergman, H.F. Oahu BISH 1928-01-04
14 Sporobolus diandrus Waimano Road, Palolo Valley Residential street, Waimano Road. Growing in a lawn. Farily common in lawns along the street. Preserved_Specimen Perennial cespitose; culms erect, ca. 20 cm. tall; stamens 2; panicle open. Ross, M.C. 1825 Oahu BISH 2022-09-27
15 Sporobolus diandrus Auwaiolimu St. & Kapahu St From crack in sidewalk Preserved_Specimen Common Faccenda, K. 1825 Oahu BISH 2021-05-15
16 Sporobolus diandrus Hana Hwy ca. 200 m E of Wai'anapanapa state park Wet, sunny roadside dominated by weeds Preserved_Specimen Common along Hana Hwy., however, most plants were smaller than this and did not have secondary panicle branching. Faccenda, K. 2772 Maui BISH 2022-10-23
17 Sporobolus diandrus UH Manoa, vicinity of Gilmore Hall Shaded lawn, not recently mowed Preserved_Specimen Common Faccenda, K. 1766 Oahu BISH 2021-05-08
18 Sporobolus diandrus Laie 5% slope; clay-loam soil Preserved_Specimen Beckham, N. 64 Oahu BISH 1967-04-20
19 Sporobolus diandrus University of Hawai'i at Mānoa, behind St. John building From occasionally mowed grass along a sidewalk in unirrigated area in full sun Preserved_Specimen Caespitose grass, uncommon on campus, mostly seen around St. John and Gilmore. Faccenda, K. 2849 Oahu BISH 2022-11-16
20 Sporobolus diandrus Honolulu Grassland along street Preserved_Specimen Hitchcock, A.S. 14070 Oahu BISH 1916-07-19
21 Sporobolus diandrus Koloa District, Lawai Valley. Allerton Estate at Lawai Kai. Behind and between main and guest house In lawn. Preserved_Specimen Clumping herb; blades dull medium green above, glossy below; inflorescence erect. Flynn, T.W. 5833 Kauai BISH 1995-08-25
22 Sporobolus diandrus USDA Plant Materials Center. Field 7B, Row 3, Plot 22, HA-4530 Dryland grass & legume trial. Preserved_Specimen 2 ft. grass w/much dieback. Leaves medium green w/red tinge. A few small inflorescences present. No disease of insect problems noted. Evans, M. 123 Molokai BISH 1990-07-13
23 Sporobolus diandrus east Maui, Hana District, Nanualele, north side of Hana Bay. in disturbed coastal site. Preserved_Specimen Sparingly naturalized Oppenheimer, H.L. 71808 Maui BISH 2018-07-16
24 Sporobolus diandrus 28.5 mi down Chain of Craters Rd. towards Kalapan from intersection with Crater Rim Rd. or 0.2 mile before Queen's Bath. Plant ca. 1/4 mile up Royal Estates Rd. not far from HVNP boundry (Plot 27) Mixed lowland scrub community. Preserved_Specimen Newell, C.L. 131 Hawaii BISH 1966-07-20
25 Sporobolus diandrus 5426 Panilolo Place, Aina Haina Several plants growing in lawn. Preserved_Specimen Corn, C. Oahu BISH 1982-01-05
26 Sporobolus diandrus Aina Haina, 5426 Panilolo Place In lawn. Preserved_Specimen Corn, C. Oahu BISH 1982-01-05
27 Sporobolus diandrus Honolulu; University Avenue, Manoa Weed in lawn. Preserved_Specimen Fosberg, F.R. 10768 Oahu BISH 1935-01-22
28 Sporobolus diandrus Honolulu; Makiki Street at Hastings Growing interspersed with Bermuda grass in lawns. Preserved_Specimen Lee, H.A. 28 Oahu BISH 1924-08-24
29 Sporobolus diandrus Manoa Valley Mixed with lawn grass Preserved_Specimen Height 0.25 m Weller 91 Oahu BISH 1924-09-01
30 Sporobolus diandrus Honolulu; Kaimuki Grass in loamy soil Preserved_Specimen Thompson, J.W. Oahu BISH 1920-10-15
31 Sporobolus diandrus east Maui, Hana District, Honoma`ele. Preserved_Specimen Clumping grass, occasional in lawn Oppenheimer, H.L. 91401 Maui BISH 2014-09-02
32 Sporobolus diandrus Wailupe On raised reef, near the sea; wayside plant. Preserved_Specimen Egler, F.E. 37327 Oahu BISH 1937-04-08
33 Sporobolus diandrus Honolulu Preserved_Specimen Ac. No. 64 Westgate, J.M. Oahu BISH 1920-12-01
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