Annual Plant Species of the Borrego Desert: Frequency of Observation in Bloom

From 2008 to early 2012, we've observed 175 species of annuals in bloom in the Borrego Desert below 3000 feet elevation, during our typical observation period from October or November through typically the end of March. This page gives a table of the most frequently observed species in bloom. These are the species you are mostly likely to see in bloom during that period.

The column #O gives the number of times we've recorded each species in bloom from 2008 to early 2012.

For a list of these annuals in traditional Family order, see Annual Plant Species of the Borrego Desert: Seedling and Flower Pictures.

#FAM#OPixScientific NameBaby Pix(*)Common Name
1AST38Palafoxia arida var. aridadesert needle
2BRA33Brassica tournefortii*Asian mustard
3BOR30Cryptantha angustifolianarrow-leaved cryptantha
4GER30Erodium cicutarium*redstem filaree
5POA29Aristida adscensionissix-weeks three-awn
6SOL28Physalis crassifoliathick-leaved ground cherry
7BOR26Cryptantha maritimaGuadalupe cryptantha
8BOR26Pectocarya recurvatacurvenut combseed
9ONA26Camissonia claviformis ssp. peirsoniibrown-eyed primrose
10PAP26Eschscholzia minutiflora ssp. minutiflorasmall-flowered poppy
11AST25Perityle emoryiEmory's rock-daisy
12AST24Malacothrix glabratadesert dandelion
13NYC24Abronia villosa var. villosahairy sand-verbena
14HYD23Phacelia distanscommon phacelia
15ONA22Camissonia californicaCalifornia suncup
16PAP22Eschscholzia parishiiParish's poppy
17PLA22Plantago ovatadesert plantain
18BRA21Lepidium lasiocarpum var. lasiocarpumhairy-podded pepper-grass
19POA21Schismus barbatus*Mediterranean schismus
20AST20Rafinesquia neomexicanadesert chicory
21EUP20Chamaesyce setilobaYuma spurge
22FAB20Lupinus arizonicusArizona lupine
23AST19Trichoptilium incisumyellow-head
24BOR19Cryptantha barbigerabearded cryptantha
25ONA19Camissonia cardiophylla ssp. cardiophyllaheartleaf sun-cup
26POL19Eriogonum thomasiiThomas' buckwheat
27AST18Monoptilon bellioidesdesert star
28HYD18Emmenanthe penduliflora var. penduliflorawhispering bells
29ONA17Camissonia boothii ssp. condensataBooth's desert primrose
30AST16Senecio mohavensisMojave ragwort
31FAB16Lotus strigosusstrigose lotus
32BRA15Sisymbrium irio*London rocket
33AST14Chaenactis fremontiiFremont pincushion
34BRA14Descurainia pinnatawestern tansy-mustard
35BRA14Dithyrea californicaspectacle-pod
36AST13Chaenactis stevioidesdesert pincushion
37ONA13Camissonia pallida ssp. pallidapale sun-cup
38SCR13Mimulus bigelovii var. bigeloviiBigelow's monkeyflower
39EUP12Euphorbia erianthabeetle spurge
40HYD12Phacelia crenulata var. minutifloralittle-flowered heliotrope phacelia
41SCR12Mohavea confertifloraghost flower
42AST11Geraea canescenshairy desert-sunflower
43CAR11Achyronychia cooperifrost mat
44POA11Bouteloua aristidoides var. aristidoidesneedle grama
45BOR10Amsinckia menziesii var. intermediacommon fiddleneck
46EUP10Ditaxis neomexicanaNew Mexico ditaxis
47FAB10Lotus salsuginosus var. brevivexillusshort-bannered coastal lotus
48LAM10Salvia columbariaechia
49RES10Oligomeris linifolianarrowleaf oligomeris
50POA10Bromus madritensis ssp. rubens*red brome
51AST9Pectis papposa var. papposachinch-weed
52BRA9Guillenia lasiophyllaCalifornia mustard
53CAM9Nemacladus glanduliferus var. glanduliferusglandular nemacladus
54GER9Erodium texanumTexas filaree
55LOA9Mentzelia involucratabracted blazing star
56SOL9Datura discolordesert thornapple
57URT9Parietaria hespera var. hesperapellitory
58BOR8Cryptantha pterocaryawing-nut cryptantha
59EUP8Chamaesyce micromeraSonoran spurge
60HYD8Pholistoma membranaceumwhite fiesta flower
61ONA8Oenothera deltoides ssp. deltoidesdune primrose
62POL8Gilia stellatastar gilia
63CHE7Chenopodium murale*nettle-leaved goosefoot
64FAB7Lupinus concinnusbajada lupine
65POL7Gilia latifoliabroad-leaf gilia
66POL7Langloisia setosissima ssp. setosissimabristly langloisia
67POL7Eriogonum davidsoniiDavidson's buckwheat
68POA7Vulpia bromoides*brome fescue
69AST6Calycoseris wrightiiwhite tackstem
70AST6Filago depressadwarf filago
71BOR6Cryptantha decipiensgravel cryptantha
72BOR6Cryptantha micranthapurple-root cryptantha
73BOR6Cryptantha nevadensisNevada cryptantha
74CRA6Crassula connatapygmy-weed
75MAL6Eremalche exiliswhite mallow
76ONA6Camissonia refractanarrow-leaf sun-cup
77POA6Bouteloua barbata var. barbatasix-weeks grama
78AMA5Amaranthus fimbriatusfringed amaranth
79AST5Chaenactis carphoclinia var. carphocliniapebble pincushion
80AST5Filago arizonicaArizona herba impia
81AST5Filago californicaCalifornia filago
82AST5Gnaphalium luteo-album*common cudweed
83BOR5Pectocarya heterocarpachuckwalla pectocarya
84BRA5Thysanocarpus curvipesfringe-pod
85HYD5Nama demissum var. demissumpurple mat
86HYD5Phacelia crenulata var. ambiguaheliotrope phacelia
87MAL5Eremalche rotundifoliadesert five-spot
88NYC5Boerhavia wrightiiWright's spiderling
89POL5Loeseliastrum matthewsiidesert calico
90POL5Chorizanthe brevicornu var. brevicornubrittle spineflower
91POL5Pterostegia drymarioidesthreadstem
92POA5Bromus tectorumdowny brome
93AST4Dicoria canescensdesert dicoria
94AST4Heterotheca grandifloratelegraph weed
95AST4Stephanomeria exigua ssp. exiguaslender wreathplant
96BOR4Cryptantha utahensisscented cryptantha
97BOR4Plagiobothrys arizonicusArizona popcorn flower
98BRA4Draba cuneifoliawedge-leaved draba
99CUS4Cuscuta californica var. papillosapapillate dodder
100HYD4Eucrypta micranthadesert eucrypta
101HYD4Phacelia cicutaria var. hispidacaterpillar phacelia
102HYD4Phacelia minorwild canterbury bells
103HYD4Phacelia pedicellatapedicellate phacelia
104LOA4Mentzelia affinisyellow blazing star
105NYC4Boerhavia intermediafivewing spiderling
106POL4Chorizanthe rigidadevil's spineflower
107POR4Calyptridium monandrumsand cress
108AST3Conyza canadensishorseweed
109AST3Eriophyllum wallaceiWallace's woolly daisy
110AST3Lasthenia californicagoldfields
111AST3Malperia tenuisbrown turbans
112BOR3Amsinckia tessellata var. tessellatabristly fiddleneck
113BOR3Pectocarya platycarpabroad-fruited combseed
114BRA3Tropidocarpum gracileslender tropidocarpum
115HYD3Eucrypta chrysanthemifolia var. bipinnatifidaeucrypta
116LOA3Mentzelia albicauliswhite-stemmed blazing star
117POL3Eriogonum deflexum var. deflexumflat-topped buckwheat
118POA3Bromus diandrus*ripgut brome
119AST2Baileya pauciradiataColorado Desert marigold
120AST2Psathyrotes ramosissimaturtleback
121AST2Senecio californicusCalifornia groundsel
122BRA2Caulanthus cooperiCooper's jewel-flower
123FAB2Lupinus bicolordwarf lupine
124FAB2Lupinus sparsiflorusCoulter's lupine
125POL2Linanthus jonesiiJones' linanthus
126POL2Eriogonum gracile var. incultumslender buckwheat
127POL2Eriogonum trichopes var. trichopeslittle desert buckwheat
128POR2Calandrinia ambiguadesert red maids
129ZYG2Tribulus terrestris*puncture-vine
130POA2Bromus trinii*Chilean chess
131POA2Hordeum murinum ssp. glaucum*foxtail barley
132POA2Muhlenbergia microspermalittleseed muhly
133AMA1Amaranthus albus*tumble pigweed
134AMA1Amaranthus palmeriPalmer's amaranth
135AST1Ambrosia acanthicarpabur-ragweed
136AST1Chaenactis carphoclinia var. peirsoniiPeirson's pincushion
137AST1Helianthus niveus ssp. canescensgray desert sunflower
138AST1Prenanthella exiguabright-white
139AST1Sonchus asper ssp. asper*prickly sow thistle
140AST1Sonchus oleraceus*sow thistle
141AST1Stylocline gnaphaloideseverlasting nest-straw
142AST1Stylocline micropoidesdesert nest straw
143AST1Uropappus lindleyisilver puffs
144BOR1Cryptantha costataribbed cryptantha
145BOR1Cryptantha intermediapopcorn flower
146BOR1Cryptantha oxygonaSharp-Nut Cryptantha
147BOR1Pectocarya linearis ssp. feroculaslender combseed
148BOR1Pectocarya peninsularisBaja pectocarya
149BRA1Caulanthus halliiHall's caulanthus
150BRA1Sisymbrium orientale*Oriental mustard
151BRA1Streptanthella longirostrislongbeak streptanthella
152CAM1Nemacladus longiflorus var. breviflorusthread plant
153CAM1Nemacladus rubescensdesert nemacladus
154CAM1Nemacladus sigmoideussmall-flowered nemacladus
155CHE1Atriplex elegans var. fasciculatawheelscale
156EUP1Stillingia spinulosaannual stillingia
157FAB1Lupinus microcarpus var. microcarpuschick lupine
158FAB1Melilotus indicus*sourclover
159LOA1Mentzelia veatchianaVeatch's blazing star
160MAL1Malva parviflora*cheeseweed
161ONA1Camissonia intermediaintermediate sun-cups
162PAP1Argemone munitaprickly poppy
163POL1Eriastrum diffusumminiature woolly-star
164POL1Eriastrum eremicum ssp. eremicumdesert woolly-star
165POL1Gilia australissouthern gilia
166POL1Gilia diegensiscoastal gilia
167POL1Loeseliastrum schottiiSchott's calico
168POL1Chorizanthe corrugatawrinkled spineflower
169POL1Eriogonum molestumpineland buckwheat
170SCR1Antirrhinum filipesdesert twining snapdragon
171SCR1Mimulus guttatuscommon monkeyflower
172POA1Bromus hordeaceussoft chess
173POA1Leptochloa uninerviaMexican sprangletop
174POA1Phalaris minor*little-seed canarygrass
175POA1Polypogon monspeliensis*rabbits-foot grass


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Copyright © 2012 by Tom Chester, Mike Crouse and Kate Harper.
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http://tchester.org/bd/species/annuals_bloom_frequency.html
Comments and feedback: Tom Chester
Updated 21 January 2012.