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What's In Bloom?
SPRING
February - April
The University of Arizona’s campus boasts trees from all over the world. Flowering displays in February through April include creamy puffballs, flamboyant yellow flowers, fuzzy pink blooms, and showy purple cascades. Fragrances range from heavy citrus smells to that of grape Kool-Aid. |
Aloes - Aloe barbadensis; Aloe castanea; Aloe vera
Spikes of yellow and orange flowers, attractive to hummingbirds
Old Main; ILC;
north of FCS |

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Citrus - various kinds
White fragrant flowers, the signature smell of spring
Native to the Far East.
Orange Walk,
Steward Observatory. |
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Sweet acacia - Acacia farnesiana
Sprays of gold pompom flowers, very aromatic.
Native to Sonoran Desert.
In ILC; between
Econ and Engineering |
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Texas Mountain Laurel - Sophora secundiflora
Drooping clusters of purple blossoms, very fragrant
Native to Texas and Mexico
N of Bio West, S of
Engineering, W of
Science Library |
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Palo verde - Parkinsonia florida, and Parkinsonia microphylla
The state tree - green bark and yellow flowers.
Native to Arizona.
Old Main, east of
McKale |
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Bauhinia-leafed Acacia - Acacia crassifolia
White puffballs, very fragrant.
Native to Mexico.
North of
Cherry Ave Garage |
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Orchid tree - Bauhinia variegata and Bauhinia variegata ‘candida’
Profuse purple or white flowers that resemble orchids.
Native to India, China.
Southwest of CESL; north of
Vet Sci/Micro |
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Redbuds - Cercis canadensis
Native to Eastern US
North of
Graham/Greenlee;
north of Anthropology |
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Yellow Amapa - Tabebuia chrysotricha
Neon-yellow tropical flowers on bare branches.
Native to the tropics.
South
Engineering; east of
Main Library |
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Texas olive - Cordia boissieri
White tissue-paper flowers on dark green foliage.
Native to Texas and Mexico.
Corner
Speedway & Cherry; S; N of
Communications; south of
Main Library |
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Pink bottle tree - Brachychiton x excellens
Pink 3" velvety flowers.
Native to Australia.
South of
BioSci West |
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Bottle brush tree - Callistemon citrinus; Callistemon australis; Callistemon viminalis
Red pendulous flowers that resemble bottle brushes.
Native to Australia.
Education building courtyard; NE of
PAS; south of
Manzinita-Mohave dorm; south of
Engineering |
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To see a full campus map with all trees identified, please click on “Maps and Walks”. You can search for tree species, identify any one tree, find all species from Mexico, learn what plants grow around a favorite building, or just remember what a beautiful campus we have.