Top Results for Federally Listed
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Pediocactus knowltonii, Knowlton's Miniature Cactus, is one of the rarest cacti in the United States, endemic to a single small area on the New Mexico–Colorado border and listed as federally endangered since 1979.
Why this score
Extreme rarity and miniature status give major conservation and collector interest, despite subtle appearance.
Scoring methodology
The Peebles Navajo Cactus (Pediocactus peeblesianus) is a rare, miniature globose cactus endemic to the Navajo County region of Arizona. It is a federally listed endangered species that exists in small, scattered populations on the Colorado Plateau. The plant is adapted to high-desert environments a...
Why this score
Federally endangered narrow endemic with strong conservation significance, but limited ornamental recognition outside specialists.
Scoring methodology
Sneed's Pincushion (Escobaria sneedii) is a small, rare species of cactus native to the Chihuahuan Desert ecoregion of North America. It is known to exist only in a few isolated populations growing on limestone cliffs and rocky slopes, primarily located within the Organ Mountains of southern New Mex...
Why this score
Endangered limestone-cliff endemic with strong conservation significance, valued by specialists but not widely known.
Scoring methodology
Pediocactus bradyi, Brady's Pincushion Cactus, is a federally endangered US species endemic to a small area of the Marble Canyon region in Arizona, first described in 1958 and protected under the Endangered Species Act.
Why this score
Endangered status and narrow endemic range create conservation importance, with specialist respect exceeding ornamental popularity.
Scoring methodology
Sclerocactus wrightiae, commonly known as Wright's fishhook cactus, is a small barrel cactus endemic to a limited area of Utah, primarily in Emery and Wayne counties. It is listed as a federally endangered species due to its restricted range and threats including illegal collection and habitat distu...
Why this score
Endangered Utah fishhook with conservation importance and distinctive spines, but limited broader horticultural impact.
Scoring methodology
Pediocactus despainii, commonly known as the San Rafael cactus, is a small, rare succulent endemic to central Utah. It is strictly restricted to the San Rafael Swell region within Emery and Sevier counties, where it grows in sparse desert shrublands on undisturbed soil. The cactus is characterized b...
Why this score
Restricted Utah endemic and endangered status matter highly, though public recognition and ornamental drama are limited.
Scoring methodology
Coryphantha robustispina is a federally threatened pincushion cactus endemic to grasslands of southern Arizona and Sonora, Mexico, listed under the US Endangered Species Act due to severe habitat loss.
Why this score
Conservation status and stout form add importance, but limited ornamental fame and habitat specificity moderate consensus score.
Scoring methodology
The Siler pincushion (Pediocactus sileri) is a rare, small cactus species native to the arid regions of the Arizona Strip and adjacent areas in southwestern Utah. It is highly adapted to surviving in harsh, selenium-rich gypsiferous soils that are toxic to the vast majority of plant life. The plant...
Why this score
Threatened status and unusual selenium-rich habitat add significance, while ornamental reputation remains specialist.
Scoring methodology
Tobusch fishhook cactus (Ancistrocactus brevihamatus) is a small, rare cactus endemic to the Edwards Plateau region of Texas. Named after Fred Tobusch, the plant features hooked central spines and yellowish-green flowers. It was listed as a federally endangered species due to severe habitat loss, pr...
Why this score
Endangered Texas endemic with conservation weight, but modest visual impact and limited public awareness.
Scoring methodologyFrequently Asked Questions
What leads the Federally Listed ranking?
Knowlton's Miniature Cactus (Pediocactus knowltonii) currently leads the Federally Listed results with a displayed score of 8.18/10. This is an editorial ranking result for the items included on this page, not a universal verdict for every use case.
How should I read the score and confidence label?
The 0 to 10 score is Lunoo's ranking judgment. Strong confidence means 10 or more recorded comparison checks, some means 2 to 9, and provisional means fewer than 2.
What supports this ranking?
Lunoo combines category fit, feature coverage, pricing and value signals, public reception, recency, and peer comparisons. Public source links support factual item details when available, but they are not required for membership in this 9-item ranking.
Can I compare the leading results for Federally Listed?
Yes. The comparison links put adjacent leaders side by side so you can inspect differences that one ranking score cannot capture.
