






FRIENDS OF THE DUNES
A Photographic Guide to Plants of
Humboldt Bay Dunes and Wetlands
Compiled by Gordon Leppig and Andrea Pickart
Release 2.0
April 2018
List by Genus: Letters A-H
Abies | Abronia | Acer | Achillea | Acmispon | Agrostis | Aira | Allotropa |Alnus | Ambrosia |
Ammophila | Anaphalis | Angelica | Anthoxanthum | Aphanes | Arbutus | Arctostaphylos |
Arctotheca | Armeria | Artemisia | Athyrium | Atriplex | Avena | Azolla | Baccharis | Bellardia |
Bolboschoenus | Brassica | Briza | Bromus | Cakile | Calamagrostis | Calandrinia | Callitriche |
Calypso | Calystegia | Camissoniopsis | Capsella | Cardamine | Cardionema | Carex | Carpobrotus |
Castilleja | Cerastium | Chamerion | Chimaphila | Chloropyron | Cicuta | Cirsium | Clarkia |
Claytonia | Clinopodium | Coincya | Corethrogyne | Cortaderia | Cotoneaster | Cotula | Crassula |
Crocosmia | Cryptantha​ | Cuscuta | Cynodon | Cynosurus | Cyperus | Cytisus | Dactylis | Daucus |
Deschampsia | Distichlis | Dryopteris | Eleocharis | Elymus | Epilobium | Equisetum | Erigeron |
Eriogonum | Erodium | Erysimum | Eschscholzia | Festuca | Fragaria | Frangula | Galium |
Gamochaeta | Garrya | Gaultheria | Geranium | Gilia | Glehnia | Gnaphalium | Goodyera |
Grindelia | Hedera | Hesperevax | Hesperocyparis | Hieracium | Hippuris | Hirschfeldia | Holcus |
Hordeum | Hydrocotyle | Hypericum | Hypochaeris
Status: Conservation concern (C); Exotic (E); Invasive (I); California Native (N)
​
Habitat: Dune mat (DM), Dune scrub (DS), Dune swale (SW), Coniferous dune forest (CDF), Riparian forest (RF), Freshwater marsh (FM), Freshwater swamp (FS), Freshwater marsh (FM), Open water (OW), Brackish marsh (BM), Salt marsh (SM), Mudflat (MF) Agricultural wetland (AW).
​
* This vascular plant list for Humboldt Bay dunes and wetlands is based on collections made by the authors primarily between 2001 and 2008.
Please email comments, corrections, or proposed additions to andrea_pickart@fws.gov.
Nomenclature follows the Jepson Manual, Higher Plants of California, Second edition (U.C. Press 2012).
​
Scientific Name
Abies grandis

Common Name
grand fir
Close-up

Status
N
Occurs
HBNWR, Lanphere, Ma-le'l
Habitat
CDF, RF
Other
N/A

Scientific Name
Abronia latifolia

Common Name
yellow sand verbena
Close-up

Status
N
Occurs
HBNWR, Lanphere, Ma-le'l
Habitat
DM
Other
N/A

Scientific Name
Abronia umbellata var. breviflora

Common Name
pink sand verbena
Close-up

Status
N, C
Occurs
HBNWR, Lanphere, Ma-le'l
Habitat
DM
Other
N/A

Scientific Name
Acer macrophyllum

Common Name
big leaf maple
Close-up

Status
N
Occurs
HBNWR
Habitat
FS
Other
N/A

Scientific Name
Achillea millefolium

Common Name
common yarrow
Close-up

Status
N
Habitat
DM, CDF, SW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Acmispon americanus var. americanus

Common Name
American bird's-foot trefoil
Close-up

Status
N
Habitat
SW, DM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Acmispon parviflorus

Common Name
small-flowered lotus
Close-up

Status
N
Habitat
DM, SW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Agrostis hallii

Common Name
Hall's bentgrass
Close-up

Status
N
Habitat
CDF

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Agrostis hallii

Common Name
Hall's bentgrass
Close-up

Status
N
Habitat
CDF

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Agrostis microphylla

Common Name
little-leaf bentgrass
Close-up

Status
N
Habitat
SW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Agrostis stolonifera

Common Name
creeping bentgrass
Close-up

Status
E, I
Habitat
BM, AW, FM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Aira caryophyllea

Common Name
silver hairgrass
Close-up

Status
E, I
Habitat
DM, DS, SW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Aira praecox

Common Name
yellow hairgrass
Close-up

Status
E, I
Habitat
DM, DS, SW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Allotropa virgata

Common Name
sugar-stick
Close-up

Status
N
Habitat
CDF

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Alnus rubra

Common Name
red alder
Close-up

Status
N
Habitat
RF, FS, SW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Ambrosia chamissonis

Common Name
beach-bur
Close-up

Status
N
Habitat
DM, DS

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Ammophila arenaria

Common Name
European beach grass
Close-up

Status
E, I
Habitat
DM, DS

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Anaphalis margaritacea

Common Name
pearly everlasting
Close-up

Status
N
Habitat
CDF, DM, SW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Angelica lucida

Common Name
seacoast angelica
Close-up

Status
N, C
Habitat
BM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Anthoxanthum occidentale

Common Name
western sweetgrass
Close-up

Status
N
Habitat
CDF

Occurs
HBNWR
Other
N/A
Scientific Name
Anthoxanthum odoratum

Common Name
sweet vernal grass
Close-up

Status
E, I
Habitat
DM, DS, SW, AW, FS, CDF

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Aphanes occidentalis

Common Name
lady's mantle
Close-up

Status
N
Habitat
DM, SW

Occurs
N/A
Other
N/A
Scientific Name
Arbutus menziesii

Common Name
Pacific madrone
Close-up

Status
N
Habitat
C

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Arctostaphylos columbiana

Common Name
hairy manzanita
Close-up

Status
N
Habitat
CDF

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Arctostaphylos uva-ursi

Common Name
bearberry
Close-up

Status
N
Habitat
CDF, DM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Arctotheca calendula

Common Name
cape weed
Close-up

Status
E, I
Habitat
CDF, FS

Occurs
N/A
Other
N/A
Scientific Name
Armeria maritima ssp. californica

Common Name
California sea-pink
Close-up

Status
N
Habitat
DM, DS

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Artemisia pycnocephala

Common Name
coastal sagewort
Close-up

Status
N
Habitat
DM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Athyrium filix-femina var. cyclosorum

Common Name
lady fern
Close-up

Status
N
Habitat
CDF, FS

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Atriplex leucophylla

Common Name
beach salt bush
Close-up

Status
N
Habitat
DM, SM

Occurs
N/A
Other
N/A
Scientific Name
Atriplex patula

Common Name
spear saltbush
Close-up

Status
N
Habitat
BM, SM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Atriplex prostrata

Common Name
triangle oracle
Close-up

Status
E, I
Habitat
BM, SM, AW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Avena sativa

Common Name
common oats
Close-up

Status
E
Habitat
AW

Occurs
HBNWR
Other
N/A
Scientific Name
Azolla filiculoides

Common Name
Pacific mosquito fern
Close-up

Status
N
Habitat
FM, SW, OW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Baccharis glutinosa

Common Name
saltmarsh baccharis
Close-up

Status
N
Habitat
BM, FM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Baccharis pilularis

Common Name
coyote brush
Close-up

Status
N
Habitat
DM, AW, BM, FM, FS, RF

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Bellardia trixago

Common Name
Mediterranean lineseed
Close-up

Status
E, I
Habitat
FM, DM

Occurs
N/A
Other
N/A
Scientific Name
Bolboschoenus maritimus

Common Name
seacoast bulrush
Close-up

Status
N
Habitat
BM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Bolboschoenus robustus

Common Name
sturdy bulrush
Close-up

Status
N
Habitat
BM

Occurs
N/A
Other
N/A
Scientific Name
Brassica rapa

Common Name
common mustard
Close-up

Status
E, I
Habitat
AW, FM

Occurs
HBNWR
Other
N/A
Scientific Name
Briza maxima

Common Name
big quaking grass
Close-up

Status
E, I
Habitat
DM, DS, SW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Briza minor

Common Name
little quaking grass
Close-up

Status
E
Habitat
SW, FM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Bromus carinatus var. carinatus

Common Name
mountain brome
Close-up

Status
N
Habitat
DM

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Bromus diandrus

Common Name
ripgut brome
Close-up

Status
E, I
Habitat
DM, DS, SW

Occurs
HBNWR, Lanphere, Ma-le'l
Other
N/A
Scientific Name
Bromus hordeaceus

Common Name
soft chess
Close-up

Status
E, I
Habitat
DM, BM, SW