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Key to families | Table of families and genera

Specimen numbers are hyperlinked to records in the Consortium of California Herbaria data view where possible. Taxa are hyperlinked to entries in the Jepson Interchange via the "[Online Interchange]" link.


Hairs sparse to dense, stinging 0. Stem: branches from base, decumbent to erect, generally herbaceous. Leaf: alternate, blade 1–9 cm, lanceolate to round, entire; stipules 0; crystals round. Inflorescence: head-, spike-, or panicle-like, generally few-flowered; flowers subtended by involucre of 1–3 lance-linear bracts. Flower: sepals 4, fused below. Staminate flower: stamens 4. Fruit: ovoid, shiny.
20–30 species: worldwide temperate, subtropics. (Latin: wall, from habitat of some)
Unabridged references: [Hinton 1969 Sida 3:293–297]
Unabridged note: Parietaria floridana Nutt. collected as nursery weed in South Coast.

Key to Parietaria

1. Fruit ± black, tip acute; stem becoming woody ..... P. judaica

1' Fruit tan to ± brown or red-brown, tip obtuse; stem herbaceous

2. Leaf blade on older stems lanceolate to linear, base long-tapered, lowest veins from midrib well above blade base ..... P. pensylvanica

2' Leaf blade round to ovate or lanceolate on older stems, base truncate to wedge-shaped, lowest veins from midrib at blade base ..... P. hespera

3. Leaf blade round to ovate on older stems, width = length; calyx lobes spreading to recurved, acuminate ..... var. californica

3' Leaf blade ovate to lanceolate on older stems, width < length; calyx lobes erect, acute or abruptly narrowed below mucronate tip ..... var. hespera


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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