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Chenopodium album

L. (1753)

This name is accepted

Kingdom: Viridiplantae Phylum: Magnoliophyta Class/Clade: Eudicot-CoreEudicot Order: Caryophyllales Family: Amaranthaceae Genus: Chenopodium

goosefoot, lamb's quarters, pigweed

Description

Key Characters:

Growth Form: Annual herbs.

Stems: Stems erect, 5–10(–15) dm long, with a usually stout central stem and ascending lateral branches, mealy pubescent or glabrate.

Roots:

Leaves: Leaves simple. Alternate. Blades variable, often rhombic–ovate to lanceolate, more than 1.5 times longer than wide, 3–6 cm long, 2–3 (–4) cm wide. Apex acute to obtuse. Base narrowly to broadly cuneate. Surfaces moderately to densely mealy. Margins irregularly sinuate–dentate to entire. Petioles ca. 0.5–4 cm long. Stipules absent.

Flowers: Flowers in dense glomerules grouped into dense, nearly leafless, paniculate spikes. Flowers bisexual (perfect), small. Calyx (3–)5-lobed, ca. 1 mm long, completely enclosing the fruit at maturity, the lobes ovate, weakly or not keeled, mealy pubescent, margins scarious, persistent. Corolla (petals) absent. Stamens 1–5; anthers dithecal, opening by longitudinal slits. Ovary superior, 2–3(–5)-carpellate, 1-celled, placentation basal; ovule 1; styles 2–5; stigmas dry.

Fruit: Utricles. Seeds 1 per fruit; horizontal; 1.1–1.5 mm in diameter; margins obtuse; pericarp lightly roughened; not alveolate; usually attached to the seed.

Ploidy: 2n = 18; 36; 54

Habitat:

Elevation Range:

Historical Distribution

Accepted Subtaxa (in Hawai'i) (1)

Chenopodium album var. album

Uses and Culture

USES

Natural History

Statewide Status

Naturalized

Island Status

Maui Naturalized
Hawai'i Naturalized

Dispersal Agents


Pollinators

Specimens

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Bibliography

Name Published In: Sp. Pl.: 219 (1753)

Occurrences

SNo. Scientific Name Scientific Name Authorship Locality Habitat Basis of Record Recorded By Record Number Island Source Date
1 Chenopodium album L. Kekaulike Hwy., margin of gulch PRESERVED_SPECIMEN Wagner, W.L. 5673 Maui BISH 7/12/1986
2 Chenopodium album L. east maui, kula district PRESERVED_SPECIMEN hobdy, r.w. collector number: 2633 Molokai BISH 10/8/1986
3 Chenopodium album L. east maui, kula Along highway. PRESERVED_SPECIMEN hobdy, r.w. collector number: 2634 Maui BISH 10/8/1986
4 Chenopodium album L. Western slope of Mauna Kea, west of Puu Laau Growing in understory of very open Sophora/Myoporum forest, along with Lepidium, Bromus, Plantago, Senecio madagascariensis. PRESERVED_SPECIMEN Imada, C.T. 2000-21 Hawaii BISH 9/23/2000
5 Chenopodium album L. East Maui, Kula District PRESERVED_SPECIMEN Hobdy, R.W. 2596 Maui BISH 7/1/1986
6 Chenopodium album L. W Maui, Lahaina District, Honolua, between Honolua Valley and Mokupea Gulch, N of Puu Kaeo Growing in pasture. PRESERVED_SPECIMEN Oppenheimer, H.L. Collector Number: H60156 Maui BISH 6/27/2001
7 Chenopodium album L. S. Kohala, pasture near base of Nohonaohae cinder cone grasses, Malva parviflora PRESERVED_SPECIMEN Davis, J. 721 Hawaii BISH 4/5/1982
8 Chenopodium album L. east maui, kula district PRESERVED_SPECIMEN hobdy, r.w. collector number: 2597 Kauai BISH 7/1/1986
9 Chenopodium album L. east maui, kula district A weed along roadsides and farm fields. PRESERVED_SPECIMEN hobdy, r.w. collector number: 2573 Maui BISH 6/19/1986
10 Chenopodium album L. east maui, kula PRESERVED_SPECIMEN hobdy, r.w. collector number: 2634 Oahu BISH 10/8/1986
11 Chenopodium album L. East Maui, Kula A roadside and garden weed. PRESERVED_SPECIMEN Hobdy, R.W. 2595 Maui BISH 7/1/1986
12 Chenopodium album L. east maui, kula district PRESERVED_SPECIMEN hobdy, r.w. collector number: 2596 Maui BISH 7/1/1986
13 Chenopodium album L. East Maui, Kula District PRESERVED_SPECIMEN Hobdy, R.W. 2597 Maui BISH 7/1/1986
14 Chenopodium album L. kekaulike hwy., margin of gulch PRESERVED_SPECIMEN wagner, w.l. mill, s.w.; hobdy, r.; hobdy, b.; hobdy, n.; smith, k. collector number: 5673 Maui BISH 7/12/1986
15 Chenopodium album L. East Maui, Kula District A weed along roadsides and farm fields. PRESERVED_SPECIMEN Hobdy, R.W. 2573 Maui BISH 6/19/1986
16 Chenopodium album L. W Maui, Lahaina District, Honolua, between Honolua Valley and Mokupea Gulch, N of Puu Kaeo Growing in pasture. PRESERVED_SPECIMEN Oppenheimer, H.L. H60156 Maui BISH 6/27/2001
17 Chenopodium album L. Kaonoulu. Near junction of Kula Hwy & Kekaulike Ave. PRESERVED_SPECIMEN Hank Oppenheimer H60110 Maui PTBG 6/10/2001
18 Chenopodium album L. E Maui, Makawao District, Kula, Kaonoulu, mauka of Rice Park Locally common along disturbed rural roadside PRESERVED_SPECIMEN Oppenheimer, H.L. H30902 Maui BISH 3/7/2009
19 Chenopodium album L. E. Maui, Kaonoulu. Near junction of Kula Hwy & Kekaulike Ave. PRESERVED_SPECIMEN Hank Oppenheimer H60110 Maui PTBG 6/10/2001
20 Chenopodium album L. Kula, Kaonoulu, mauka of Rice Park. Northing: 2295929; Easting 777784 PRESERVED_SPECIMEN Hank Oppenheimer H30902 Maui PTBG 3/7/2009
21 Chenopodium album L. east maui, kula PRESERVED_SPECIMEN hobdy, r.w. collector number: 2595 Maui BISH 7/1/1986
22 Chenopodium album L. east maui, kula district PRESERVED_SPECIMEN hobdy, r.w. collector number: 2598 Maui BISH 7/1/1986
23 Chenopodium album L. East Maui, Kula PRESERVED_SPECIMEN Hobdy, R.W. 2595 Maui BISH 7/1/1986
24 Chenopodium album L. Western slope of Mauna Kea, west of Puu Laau Growing in understory of very open Sophora/Myoporum forest, along with Lepidium, Bromus, Plantago, Senecio madagascariensis. PRESERVED_SPECIMEN Imada, C.T. LeGrande, M. Collector Number: 2000-21 Hawaii BISH 9/23/2000
25 Chenopodium album L. East Maui, Kula District PRESERVED_SPECIMEN Hobdy, R.W. 2598 Maui BISH 7/1/1986
26 Chenopodium album L. w maui, lahaina district, honolua, between honolua valley and mokupea gulch, n of puu kaeo Growing in pasture. PRESERVED_SPECIMEN oppenheimer, h.l. collector number: h60156 Maui BISH 6/27/2001
27 Chenopodium album L. western slope of mauna kea, west of puu laau Growing in understory of very open Sophora/Myoporum forest, along with Lepidium, Bromus, Plantago, Senecio madagascariensis. PRESERVED_SPECIMEN imada, c.t. legrande, m. collector number: 2000-21 Hawaii BISH 9/23/2000
28 Chenopodium album L. East Maui, Kula District PRESERVED_SPECIMEN Hobdy, R.W. 2633 Maui BISH 10/8/1986
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