Flora of North America species comparison

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Iva hayesiana

San Diego marsh-elder, San Diego povertyweed
Habit Perennials or subshrubs, 10–100 cm.
Stems

sprawling to erect (usually woody at bases).
Leaves

petioles 0–3(–10) mm;

blades lance-elliptic to oblanceolate, 2–5(–10) cm × 5–10(–18) mm, margins usually entire, rarely toothed, faces sparsely strigose to scabrellous, gland-dotted.
Peduncles

2–3+ mm.
Involucres

± hemispheric, 2.5–3.5 mm.
Pistillate florets

5;

corollas 0.5–1 mm.
Phyllaries

outer 5 distinct, ± herbaceous.
Heads

in ± racemiform arrays.
Cypselae

2–2.5 mm.
Paleae

linear to cuneiform, 1.5–2.5 mm.
Functionally

staminate florets 5–12(–20);

corollas 1.5–2.5 mm.

Iva hayesiana
Phenology Flowering year round.
Habitat Alkaline flats, depressions
Elevation 50–500 m (200–1600 ft)
Distribution
from FNA
CA; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
Source FNA vol. 21, p. 26.
Parent taxa Asteraceae > tribe Heliantheae > subtribe Ambrosiinae > Iva
Sibling taxa
I. angustifolia, I. annua, I. axillaris, I. frutescens, I. imbricata, I. microcephala
Name authority A. Gray: Proc. Amer. Acad. Arts 11: 78. (1876)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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(If the plant you're looking for doesn't show up in the auto-complete list, that means it either isn't described in Flora of North America yet, or it's listed under a synonym. And please note that Flora of North America is still missing several plant families, including Fabaceae, Apiaceae, Boraginaceae, and Polemoniaceae.)

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