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Buchnera pusilla

Kunth (1818)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-Asterids Order: Lamiales Family: Orobanchaceae Genus: Buchnera

bluehearts

Description

Key Characters:

Growth Form: Annual herbs 0.8–7 dm tall, usually dark purplish green.

Stems: Stems erect, unbranched or branched in the upper part, hispid with somewhat spreading hairs, the hairs white, ± pustulate–based.

Roots:

Leaves: Leaves simple. Subopposite. Lower blades oblong to oblanceolate, upper ones linear, 5–40 mm long, 2–6 mm wide. Surfaces hispid–scabrid. Margins entire to deeply dentate. (1–)3-veined. Sessile. Stipules absent.

Flowers: Flowers in terminal, lax to congested racemes up to 15(–24) cm long; bracteoles 2, upper bracts ca. 4–5 mm long. Flowers bisexual (perfect). Calyx tubular, 5.5–7 mm long, without nerves between the 10 principal nerves, these hispid–scabrid, glabrous between them, the teeth acuminate, spreading to reflexed in fruit. Corolla white, pink, lilac, or purple, salverform, the throat with short hairs, 8–9 mm long, subequally 5-lobed, the lobes 2–3 mm long. Stamens 4, included, slightly didynamous; anthers 1-celled. Ovary superior, 2-carpellate, with as many cells; ovule placentation axile; style solitary, terminal.

Fruit: Capsules loculicidal; oblong; compressed; 5–6.5 mm long. Seeds numerous; endosperm oily.

Ploidy:

Habitat: Disturbed area.

Elevation Range: ca. 180 m.

Historical Distribution

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Hawai'i Naturalized

Dispersal Agents


Pollinators

Specimens

Bibliography

Name Published In: F.W.H.von Humboldt, A.J.A.Bonpland & C.S.Kunth, Nov. Gen. Sp. 2: 340 (1818)

Other References

Wagner et al. 1990:1239 (H)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Buchnera pusilla Kunth puna district, along highway southeast of lava tree state monument, ca. 1 mi past junction of road to kapoho on highway to kapoho PRESERVED_SPECIMEN wagner, w.l. imada, c.; takeuchi, w. collector number: 5968 Kauai BISH 3/13/1988
2 Buchnera pusilla Kunth Puna District, along highway southeast of Lava Tree State Monument, ca. 1 mi past junction of road to Kapoho on highway to Kapoho PRESERVED_SPECIMEN Wagner, W.L. 5968 Hawaii BISH 3/13/1988
3 Buchnera pusilla Kunth Oahu Island, Honolulu, University of Hawaii campus PRESERVED_SPECIMEN D. R. Herbst 9672 Oahu HAPI 5/29/1994
4 Buchnera pusilla Kunth Puna District, Halekamahina. S. of Lava Tree State Park, route 132, near fork with Pohoiki Rd grassy roadside PRESERVED_SPECIMEN Imada, C.T. 1001 Hawaii BISH 2/6/1987
5 Buchnera pusilla Kunth Puna District, Ahupuaa Kahawai, Nanawale Forest Reserve, growing along Railroad Ave. just S of the Hawaiian Beaches subdivision boundary PRESERVED_SPECIMEN Herbst, D.R. 9672 Hawaii BISH 5/29/1994
6 Buchnera pusilla Kunth puna district: along pahoa-pohoiki rd. ca. 0.5 mi e of jct. with hwy 132 PRESERVED_SPECIMEN wagner, w.l. arey, s.m. collector number: 6385 Kauai BISH 6/18/1990
7 Buchnera pusilla Kunth puna district, halekamahina. s. of lava tree state park, route 132, near fork with pohoiki rd grassy roadside PRESERVED_SPECIMEN imada, c.t. takeuchi, w. collector number: 1001 Hawaii BISH 2/6/1987
8 Buchnera pusilla Kunth Puna District, along hwy. southeast of Lava Tree State Monument, ca. 1 mi. past junction of road to Kapoho on highway to Kapoho. PRESERVED_SPECIMEN Wagner, W. L.; Imada, C. T.; Takeuchi, W. N. 5968 Hawaii US 3/13/1988
9 Buchnera pusilla Kunth Along Highway southeast of Lava Tree State Monument, ca. 1 mile past junction of road to Kapoho on highway to Kapoho. PRESERVED_SPECIMEN W. L. Wagner 5968 Hawaii PTBG 3/13/1988
10 Buchnera pusilla Kunth Puna District, Ahupuaa Kahawai, Nanawale Forest Reserve, growing along Railroad Ave. just S of the Hawaiian Beaches subdivision boundary PRESERVED_SPECIMEN Herbst, D.R. Collector Number: 9672 Hawaii BISH 5/29/1994
11 Buchnera pusilla Kunth Lava Tree State Monument along Highway 132. Wet forest with Metrosideros polymorpha dominant over pahoehoe lava flow. PRESERVED_SPECIMEN David H. Lorence 6665 Hawaii PTBG 1/7/1991
12 Buchnera pusilla Kunth puna dist.; along pahoa-pohoiki rd. ca. 0.5 mi e of jct. with hwy 132 PRESERVED_SPECIMEN w. l. wagner & s. mill arey 6385 Hawaii US 6/18/1990
13 Buchnera pusilla Kunth near lava tree state monument PRESERVED_SPECIMEN w. l. wagner 5968 Oahu US
14 Buchnera pusilla Kunth puna district, ahupua'a kahawai, nanawale forest reserve, growing along railroad ave, just south of the hawaiian beaches subdivision. PRESERVED_SPECIMEN d. r. herbst 9672 Hawaii US 5/29/1994
15 Buchnera pusilla Kunth Puna District, Ahupua'a Kahawai, Nanawale Forest Reserve, growing along Railroad Ave, just south of the Hawaiian Beaches subdivision. PRESERVED_SPECIMEN Herbst, D. R. 9672 Hawaii US 5/29/1994
16 Buchnera pusilla Kunth puna district, along hwy. southeast of lava tree state monument, ca. 1 mi. past junction of road to kapoho on highway to kapoho. PRESERVED_SPECIMEN w. l. wagner, c. imada & w. n. takeuchi 5968 Hawaii US 3/13/1988
17 Buchnera pusilla Kunth Puna Dist.; along Pahoa-Pohoiki Rd. ca. 0.5 mi E of jct. with Hwy 132 PRESERVED_SPECIMEN Wagner, W. L.; Mill Arey, S. 6385 Hawaii US 6/18/1990
18 Buchnera pusilla Kunth Puna District, Ahupua'a Kahawai, Nanawale Forest Reserve, growing along Railroad Ave, just south of the Hawaiian Beaches subdivision. PRESERVED_SPECIMEN D. R. Herbst 9672 Hawaii US 5/29/1994
19 Buchnera pusilla Kunth Puna District: along Pahoa-Pohoiki Rd. ca. 0.5 mi E of jct. with Hwy 132 Roadside PRESERVED_SPECIMEN Wagner, W.L. 6385 Hawaii BISH 6/18/1990
20 Buchnera pusilla Kunth puna district, ahupuaa kahawai, nanawale forest reserve, growing along railroad ave. just s of the hawaiian beaches subdivision boundary PRESERVED_SPECIMEN herbst, d.r. collector number: 9672 Hawaii BISH 5/29/1994
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