LOOK: Environmental advocates and scientists, with friends and family of the late botanist Leonard Co, commemorated the scientist’s 15th death anniversary Saturday at the Institute of Biology.
“𝐓𝐚𝐦𝐚 𝐧𝐚, 𝐡𝐢𝐧𝐝𝐢 𝐤𝐚𝐦𝐢 𝐚𝐫𝐦𝐚𝐝𝐨.”
[STATEMENT ON LEONARD CO’S 15TH DEATH ANNIVERSARY] – UP Association of Biology Majors
LEONARDO CO: BAYANI NG BAYAN – Jerry B. Gracio
“Leonard’s song in a time of flooding,” a moving story by science journalist Bless Aubrey Ogerio
“If a tree falls in a forest and no one is around to hear it, does it make a sound?”
This old riddle, according to Ronald Achacoso, head of the Philippine Native Plants Conservation Society, has become a fitting frame for a loss that still reverberates through Philippine science.
Fifteen years after botanist Leonard Co was killed by government troops while conducting fieldwork in Leyte, the question lands with a sharper weight.
His death—described by authorities as a case of soldiers mistaking him and his two companions for rebels—was followed by years of quiet and slow-moving justice, the kind of silence that dissipates the way an echo disappears into the canopy.
Leonard, forest guard Sofronio Cortez, and guide Julius Borromeo may have seemed to have died in vain. But a decade and a half later, their death in the forest may yet save us from an avoidable death before floods completely overrun our mountains [READ]
“Leonard Co, Bayani Ko” commemorates life, legacy of People’s Botanist
Quezon City, 15 November – Botanists and advocates gathered today at the Institute of Biology in UP Diliman to mark the 15th year since the murder of the world-renowned ethnobotanist Leonard Legaspi Co. Justice continues to elude the family after Co was gunned down with forest guard Sofronio Cortez, and guide Julius Borromeo, by soldiers of the 19th Infantry Battalion of the AFP in Kananga, Leyte. The botanist and his colleagues were conducting a survey of tree species for a forest restoration project of the Energy Development Corporation (EDC) when the soldiers mercilessly fired 245 rounds at the botanical team.
“As Justice continues to elude the family of the People’s Botanist, the Constantino Foundation’s is determined to ensure Leonard Co’s life and legacy is even more known across the archipelago. Leonard defines what nationalism truly is, not merely in terms of [READ]
A NATIONAL TREASURE: LEONARD L. CO (1953-2010) By Perry S. Ong and Nina Ingle
Leonard L. Co, unparalleled plant scholar and a scientist for the people, died last November 15, 2010 in Leyte from gunshot wounds obtained during an alleged crossfire between the Philippine Army 19th Infantry Battalion and the New Peopleís Army. Co had pioneered the writing of manuals on Philippine medicinal plants for community-based health care in the 1970s and worked as a pharmacologist of Chinese medicinal plants in the 1980s. At the time of his death, Co was doing research on native forest species for reforestation. He was also assembling a digital herbarium and writing an update of The Enumeration of Philippine Flowering Plants written by Elmer Merrill at the turn of the 20th century.
Leonard [READ]
What is your mystery meat for today?
By: Anthony Arbias | November 14, 2025
One time, we had an impromptu botanical trip in the mountains with Sir Leonard. It was actually a one day notice but the boys were glad he showed up with his big and heavy backpack with his massive new laptop inside.
Part of his heavy load was a neatly packed sandwich complete with lettuce, tomatoes, and mayonnaise. As dear friends of his know, Sir Leonard has a bad habit of not wiping his mouth after eating. With mayo on the side of his mouth, he said “uy gusto nyo?” Hehe. Upon seeing my packed lunch, he jokingly said “Uy pare what’s your mystery meat for today?!” I looked at him then he laughed aloud. It was actually fried spam with rice but he thought it was one of those famous Chinese canned meat loafs which he [READ]

